diff options
60 files changed, 597 insertions, 272 deletions
diff --git a/drivers/staging/comedi/drivers/8255_pci.c b/drivers/staging/comedi/drivers/8255_pci.c index 7dff3c01dc29..af76e4e3e405 100644 --- a/drivers/staging/comedi/drivers/8255_pci.c +++ b/drivers/staging/comedi/drivers/8255_pci.c @@ -236,7 +236,7 @@ static int pci_8255_attach_pci(struct comedi_device *dev, dev->board_name = board->name; ret = alloc_private(dev, sizeof(*devpriv)); - if (ret < 0) + if (ret) return ret; devpriv = dev->private; diff --git a/drivers/staging/comedi/drivers/adl_pci6208.c b/drivers/staging/comedi/drivers/adl_pci6208.c index 3492ce1156e0..de3625224c88 100644 --- a/drivers/staging/comedi/drivers/adl_pci6208.c +++ b/drivers/staging/comedi/drivers/adl_pci6208.c @@ -192,7 +192,7 @@ static int pci6208_attach_pci(struct comedi_device *dev, dev->board_name = boardinfo->name; ret = alloc_private(dev, sizeof(*devpriv)); - if (ret < 0) + if (ret) return ret; devpriv = dev->private; diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c index 06ff65c85c9f..4eca8764685f 100644 --- a/drivers/staging/comedi/drivers/adl_pci9118.c +++ b/drivers/staging/comedi/drivers/adl_pci9118.c @@ -1924,10 +1924,8 @@ static int pci9118_attach(struct comedi_device *dev, master = 1; ret = alloc_private(dev, sizeof(*devpriv)); - if (ret < 0) { - printk(" - Allocation failed!\n"); - return -ENOMEM; - } + if (ret) + return ret; devpriv = dev->private; pcidev = pci9118_find_pci(dev, it); diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c index def37bcc2a66..322d0118dcca 100644 --- a/drivers/staging/comedi/drivers/adv_pci1710.c +++ b/drivers/staging/comedi/drivers/adv_pci1710.c @@ -1274,7 +1274,7 @@ static int pci1710_attach_pci(struct comedi_device *dev, dev->board_name = this_board->name; ret = alloc_private(dev, sizeof(*devpriv)); - if (ret < 0) + if (ret) return ret; devpriv = dev->private; diff --git a/drivers/staging/comedi/drivers/adv_pci1723.c b/drivers/staging/comedi/drivers/adv_pci1723.c index df4efc0606de..3c932e7309bc 100644 --- a/drivers/staging/comedi/drivers/adv_pci1723.c +++ b/drivers/staging/comedi/drivers/adv_pci1723.c @@ -245,7 +245,7 @@ static int pci1723_attach_pci(struct comedi_device *dev, dev->board_name = dev->driver->driver_name; ret = alloc_private(dev, sizeof(*devpriv)); - if (ret < 0) + if (ret) return ret; devpriv = dev->private; diff --git a/drivers/staging/comedi/drivers/adv_pci_dio.c b/drivers/staging/comedi/drivers/adv_pci_dio.c index a3c22419cd5f..8fa61592bbfe 100644 --- a/drivers/staging/comedi/drivers/adv_pci_dio.c +++ b/drivers/staging/comedi/drivers/adv_pci_dio.c @@ -1109,7 +1109,7 @@ static int pci_dio_attach_pci(struct comedi_device *dev, dev->board_name = this_board->name; ret = alloc_private(dev, sizeof(*devpriv)); - if (ret < 0) + if (ret) return ret; devpriv = dev->private; diff --git a/drivers/staging/comedi/drivers/amplc_dio200.c b/drivers/staging/comedi/drivers/amplc_dio200.c index 08f305210a69..556c63304324 100644 --- a/drivers/staging/comedi/drivers/amplc_dio200.c +++ b/drivers/staging/comedi/drivers/amplc_dio200.c @@ -1334,15 +1334,15 @@ static int dio200_pci_common_attach(struct comedi_device *dev, static int dio200_attach(struct comedi_device *dev, struct comedi_devconfig *it) { const struct dio200_board *thisboard = comedi_board(dev); + struct dio200_private *devpriv; int ret; dev_info(dev->class_dev, DIO200_DRIVER_NAME ": attach\n"); - ret = alloc_private(dev, sizeof(struct dio200_private)); - if (ret < 0) { - dev_err(dev->class_dev, "error! out of memory!\n"); + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; - } + devpriv = dev->private; /* Process options and reserve resources according to bus type. */ if (is_isa_board(thisboard)) { @@ -1377,6 +1377,7 @@ static int dio200_attach(struct comedi_device *dev, struct comedi_devconfig *it) static int __devinit dio200_attach_pci(struct comedi_device *dev, struct pci_dev *pci_dev) { + struct dio200_private *devpriv; int ret; if (!DO_PCI) @@ -1384,11 +1385,12 @@ static int __devinit dio200_attach_pci(struct comedi_device *dev, dev_info(dev->class_dev, DIO200_DRIVER_NAME ": attach pci %s\n", pci_name(pci_dev)); - ret = alloc_private(dev, sizeof(struct dio200_private)); - if (ret < 0) { - dev_err(dev->class_dev, "error! out of memory!\n"); + + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; - } + devpriv = dev->private; + dev->board_ptr = dio200_find_pci_board(pci_dev); if (dev->board_ptr == NULL) { dev_err(dev->class_dev, "BUG! cannot determine board type!\n"); diff --git a/drivers/staging/comedi/drivers/amplc_pc236.c b/drivers/staging/comedi/drivers/amplc_pc236.c index eacb5e4735d7..56354aa2708e 100644 --- a/drivers/staging/comedi/drivers/amplc_pc236.c +++ b/drivers/staging/comedi/drivers/amplc_pc236.c @@ -505,14 +505,16 @@ static int pc236_pci_common_attach(struct comedi_device *dev, static int pc236_attach(struct comedi_device *dev, struct comedi_devconfig *it) { const struct pc236_board *thisboard = comedi_board(dev); + struct pc236_private *devpriv; int ret; dev_info(dev->class_dev, PC236_DRIVER_NAME ": attach\n"); - ret = alloc_private(dev, sizeof(struct pc236_private)); - if (ret < 0) { - dev_err(dev->class_dev, "error! out of memory!\n"); + + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; - } + devpriv = dev->private; + /* Process options according to bus type. */ if (is_isa_board(thisboard)) { unsigned long iobase = it->options[0]; @@ -543,6 +545,7 @@ static int pc236_attach(struct comedi_device *dev, struct comedi_devconfig *it) static int __devinit pc236_attach_pci(struct comedi_device *dev, struct pci_dev *pci_dev) { + struct pc236_private *devpriv; int ret; if (!DO_PCI) @@ -550,11 +553,12 @@ static int __devinit pc236_attach_pci(struct comedi_device *dev, dev_info(dev->class_dev, PC236_DRIVER_NAME ": attach pci %s\n", pci_name(pci_dev)); - ret = alloc_private(dev, sizeof(struct pc236_private)); - if (ret < 0) { - dev_err(dev->class_dev, "error! out of memory!\n"); + + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; - } + devpriv = dev->private; + dev->board_ptr = pc236_find_pci_board(pci_dev); if (dev->board_ptr == NULL) { dev_err(dev->class_dev, "BUG! cannot determine board type!\n"); diff --git a/drivers/staging/comedi/drivers/amplc_pci224.c b/drivers/staging/comedi/drivers/amplc_pci224.c index 1f65ec4d261e..5d73082adfc5 100644 --- a/drivers/staging/comedi/drivers/amplc_pci224.c +++ b/drivers/staging/comedi/drivers/amplc_pci224.c @@ -1443,16 +1443,16 @@ static int pci224_attach_common(struct comedi_device *dev, static int pci224_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct pci224_private *devpriv; struct pci_dev *pci_dev; int ret; dev_info(dev->class_dev, DRIVER_NAME ": attach\n"); - ret = alloc_private(dev, sizeof(struct pci224_private)); - if (ret < 0) { - dev_err(dev->class_dev, "error! out of memory!\n"); + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; - } + devpriv = dev->private; pci_dev = pci224_find_pci_dev(dev, it); if (!pci_dev) @@ -1464,16 +1464,16 @@ static int pci224_attach(struct comedi_device *dev, struct comedi_devconfig *it) static int __devinit pci224_attach_pci(struct comedi_device *dev, struct pci_dev *pci_dev) { + struct pci224_private *devpriv; int ret; dev_info(dev->class_dev, DRIVER_NAME ": attach_pci %s\n", pci_name(pci_dev)); - ret = alloc_private(dev, sizeof(struct pci224_private)); - if (ret < 0) { - dev_err(dev->class_dev, "error! out of memory!\n"); + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; - } + devpriv = dev->private; dev->board_ptr = pci224_find_pci_board(pci_dev); if (dev->board_ptr == NULL) { diff --git a/drivers/staging/comedi/drivers/amplc_pci230.c b/drivers/staging/comedi/drivers/amplc_pci230.c index bd8fb876ce2e..cf454b9cb292 100644 --- a/drivers/staging/comedi/drivers/amplc_pci230.c +++ b/drivers/staging/comedi/drivers/amplc_pci230.c @@ -2662,13 +2662,11 @@ static int pci230_alloc_private(struct comedi_device *dev) struct pci230_private *devpriv; int err; - /* sets dev->private to allocated memory */ - err = alloc_private(dev, sizeof(struct pci230_private)); - if (err) { - dev_err(dev->class_dev, "error! out of memory!\n"); + err = alloc_private(dev, sizeof(*devpriv)); + if (err) return err; - } devpriv = dev->private; + spin_lock_init(&devpriv->isr_spinlock); spin_lock_init(&devpriv->res_spinlock); spin_lock_init(&devpriv->ai_stop_spinlock); @@ -2836,9 +2834,11 @@ static int pci230_attach(struct comedi_device *dev, struct comedi_devconfig *it) dev_info(dev->class_dev, "amplc_pci230: attach %s %d,%d\n", thisboard->name, it->options[0], it->options[1]); - rc = pci230_alloc_private(dev); /* sets dev->private */ + + rc = pci230_alloc_private(dev); if (rc) return rc; + pci_dev = pci230_find_pci_dev(dev, it); if (!pci_dev) return -EIO; @@ -2852,9 +2852,11 @@ static int __devinit pci230_attach_pci(struct comedi_device *dev, dev_info(dev->class_dev, "amplc_pci230: attach pci %s\n", pci_name(pci_dev)); - rc = pci230_alloc_private(dev); /* sets dev->private */ + + rc = pci230_alloc_private(dev); if (rc) return rc; + dev->board_ptr = pci230_find_pci_board(pci_dev); if (dev->board_ptr == NULL) { dev_err(dev->class_dev, diff --git a/drivers/staging/comedi/drivers/cb_das16_cs.c b/drivers/staging/comedi/drivers/cb_das16_cs.c index 6d81d8b40ccc..64442b360663 100644 --- a/drivers/staging/comedi/drivers/cb_das16_cs.c +++ b/drivers/staging/comedi/drivers/cb_das16_cs.c @@ -428,6 +428,7 @@ static int das16cs_attach(struct comedi_device *dev, struct comedi_devconfig *it) { const struct das16cs_board *thisboard; + struct das16cs_private *devpriv; struct pcmcia_device *link; struct comedi_subdevice *s; int ret; @@ -451,8 +452,10 @@ static int das16cs_attach(struct comedi_device *dev, return ret; dev->irq = link->irq; - if (alloc_private(dev, sizeof(struct das16cs_private)) < 0) - return -ENOMEM; + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; + devpriv = dev->private; ret = comedi_alloc_subdevices(dev, 3); if (ret) diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c index 22ef94242590..a1371c5a7d86 100644 --- a/drivers/staging/comedi/drivers/comedi_parport.c +++ b/drivers/staging/comedi/drivers/comedi_parport.c @@ -306,7 +306,7 @@ static int parport_attach(struct comedi_device *dev, return ret; ret = alloc_private(dev, sizeof(*devpriv)); - if (ret < 0) + if (ret) return ret; devpriv = dev->private; diff --git a/drivers/staging/comedi/drivers/comedi_test.c b/drivers/staging/comedi/drivers/comedi_test.c index 7817def1556c..788a5cc89e21 100644 --- a/drivers/staging/comedi/drivers/comedi_test.c +++ b/drivers/staging/comedi/drivers/comedi_test.c @@ -415,7 +415,7 @@ static int waveform_attach(struct comedi_device *dev, dev->board_name = dev->driver->driver_name; ret = alloc_private(dev, sizeof(*devpriv)); - if (ret < 0) + if (ret) return ret; devpriv = dev->private; diff --git a/drivers/staging/comedi/drivers/daqboard2000.c b/drivers/staging/comedi/drivers/daqboard2000.c index d13c8c5822bf..6bc51fcc6881 100644 --- a/drivers/staging/comedi/drivers/daqboard2000.c +++ b/drivers/staging/comedi/drivers/daqboard2000.c @@ -707,8 +707,8 @@ static int daqboard2000_attach_pci(struct comedi_device *dev, dev->board_name = board->name; result = alloc_private(dev, sizeof(*devpriv)); - if (result < 0) - return -ENOMEM; + if (result) + return result; devpriv = dev->private; result = comedi_pci_enable(pcidev, dev->driver->driver_name); diff --git a/drivers/staging/comedi/drivers/das08.c b/drivers/staging/comedi/drivers/das08.c index 5fd21fa6c1c7..19c2907c3842 100644 --- a/drivers/staging/comedi/drivers/das08.c +++ b/drivers/staging/comedi/drivers/das08.c @@ -778,14 +778,18 @@ das08_find_pci_board(struct pci_dev *pdev) static int __devinit __maybe_unused das08_attach_pci(struct comedi_device *dev, struct pci_dev *pdev) { + struct das08_private_struct *devpriv; unsigned long iobase; int ret; if (!DO_PCI) return -EINVAL; - ret = alloc_private(dev, sizeof(struct das08_private_struct)); - if (ret < 0) + + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; + devpriv = dev->private; + dev_info(dev->class_dev, "attach pci %s\n", pci_name(pdev)); dev->board_ptr = das08_find_pci_board(pdev); if (dev->board_ptr == NULL) { @@ -812,8 +816,8 @@ das08_attach(struct comedi_device *dev, struct comedi_devconfig *it) int ret; unsigned long iobase; - ret = alloc_private(dev, sizeof(struct das08_private_struct)); - if (ret < 0) + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; devpriv = dev->private; diff --git a/drivers/staging/comedi/drivers/das08_cs.c b/drivers/staging/comedi/drivers/das08_cs.c index e4c91e675379..d908d2d04f8c 100644 --- a/drivers/staging/comedi/drivers/das08_cs.c +++ b/drivers/staging/comedi/drivers/das08_cs.c @@ -90,13 +90,15 @@ static int das08_cs_attach(struct comedi_device *dev, struct comedi_devconfig *it) { const struct das08_board_struct *thisboard = comedi_board(dev); + struct das08_private_struct *devpriv; int ret; unsigned long iobase; struct pcmcia_device *link = cur_dev; /* XXX hack */ - ret = alloc_private(dev, sizeof(struct das08_private_struct)); - if (ret < 0) + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; + devpriv = dev->private; dev_info(dev->class_dev, "das08_cs: attach\n"); /* deal with a pci board */ diff --git a/drivers/staging/comedi/drivers/das16.c b/drivers/staging/comedi/drivers/das16.c index fcb8a32adb2f..3f614dcde8bc 100644 --- a/drivers/staging/comedi/drivers/das16.c +++ b/drivers/staging/comedi/drivers/das16.c @@ -392,12 +392,12 @@ struct das16_private_struct { volatile short timer_running; volatile short timer_mode; /* true if using timer mode */ }; -#define devpriv ((struct das16_private_struct *)(dev->private)) static int das16_cmd_test(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { const struct das16_board *board = comedi_board(dev); + struct das16_private_struct *devpriv = dev->private; int err = 0, tmp; int gain, start_chan, i; int mask; @@ -540,6 +540,7 @@ static int das16_cmd_test(struct comedi_device *dev, struct comedi_subdevice *s, static unsigned int das16_suggest_transfer_size(struct comedi_device *dev, const struct comedi_cmd *cmd) { + struct das16_private_struct *devpriv = dev->private; unsigned int size; unsigned int freq; @@ -581,6 +582,8 @@ static unsigned int das16_suggest_transfer_size(struct comedi_device *dev, static unsigned int das16_set_pacer(struct comedi_device *dev, unsigned int ns, int rounding_flags) { + struct das16_private_struct *devpriv = dev->private; + i8253_cascade_ns_to_timer_2div(devpriv->clockbase, &(devpriv->divisor1), &(devpriv->divisor2), &ns, rounding_flags & TRIG_ROUND_MASK); @@ -595,6 +598,7 @@ static unsigned int das16_set_pacer(struct comedi_device *dev, unsigned int ns, static int das16_cmd_exec(struct comedi_device *dev, struct comedi_subdevice *s) { const struct das16_board *board = comedi_board(dev); + struct das16_private_struct *devpriv = dev->private; struct comedi_async *async = s->async; struct comedi_cmd *cmd = &async->cmd; unsigned int byte; @@ -701,6 +705,7 @@ static int das16_cmd_exec(struct comedi_device *dev, struct comedi_subdevice *s) static int das16_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { const struct das16_board *board = comedi_board(dev); + struct das16_private_struct *devpriv = dev->private; unsigned long flags; spin_lock_irqsave(&dev->spinlock, flags); @@ -738,6 +743,7 @@ static int das16_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { const struct das16_board *board = comedi_board(dev); + struct das16_private_struct *devpriv = dev->private; int i, n; int range; int chan; @@ -848,10 +854,12 @@ static int das16_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, */ static int disable_dma_on_even(struct comedi_device *dev) { + struct das16_private_struct *devpriv = dev->private; int residue; int i; static const int disable_limit = 100; static const int enable_timeout = 100; + disable_dma(devpriv->dma_chan); residue = get_dma_residue(devpriv->dma_chan); for (i = 0; i < disable_limit && (residue % 2); ++i) { @@ -877,6 +885,7 @@ static int disable_dma_on_even(struct comedi_device *dev) static void das16_interrupt(struct comedi_device *dev) { const struct das16_board *board = comedi_board(dev); + struct das16_private_struct *devpriv = dev->private; unsigned long dma_flags, spin_flags; struct comedi_subdevice *s = dev->read_subdev; struct comedi_async *async; @@ -973,6 +982,7 @@ static irqreturn_t das16_dma_interrupt(int irq, void *d) static void das16_timer_interrupt(unsigned long arg) { struct comedi_device *dev = (struct comedi_device *)arg; + struct das16_private_struct *devpriv = dev->private; das16_interrupt(dev); @@ -1001,6 +1011,7 @@ static void reg_dump(struct comedi_device *dev) static int das16_probe(struct comedi_device *dev, struct comedi_devconfig *it) { const struct das16_board *board = comedi_board(dev); + struct das16_private_struct *devpriv = dev->private; int status; int diobits; @@ -1035,6 +1046,7 @@ static int das16_probe(struct comedi_device *dev, struct comedi_devconfig *it) static int das1600_mode_detect(struct comedi_device *dev) { + struct das16_private_struct *devpriv = dev->private; int status = 0; status = inb(dev->iobase + DAS1600_STATUS_B); @@ -1080,6 +1092,7 @@ static void das16_ai_munge(struct comedi_device *dev, static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it) { const struct das16_board *board = comedi_board(dev); + struct das16_private_struct *devpriv; struct comedi_subdevice *s; int ret; unsigned int irq; @@ -1114,9 +1127,10 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it) } } - ret = alloc_private(dev, sizeof(struct das16_private_struct)); - if (ret < 0) + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; + devpriv = dev->private; if (board->size < 0x400) { printk(" 0x%04lx-0x%04lx\n", iobase, iobase + board->size); @@ -1353,6 +1367,7 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it) static void das16_detach(struct comedi_device *dev) { const struct das16_board *board = comedi_board(dev); + struct das16_private_struct *devpriv = dev->private; das16_reset(dev); if (dev->subdevices) diff --git a/drivers/staging/comedi/drivers/das16m1.c b/drivers/staging/comedi/drivers/das16m1.c index c43172750ab1..b06f2b8aad66 100644 --- a/drivers/staging/comedi/drivers/das16m1.c +++ b/drivers/staging/comedi/drivers/das16m1.c @@ -144,7 +144,6 @@ struct das16m1_private_struct { unsigned int divisor1; /* divides master clock to obtain conversion speed */ unsigned int divisor2; /* divides master clock to obtain conversion speed */ }; -#define devpriv ((struct das16m1_private_struct *)(dev->private)) static inline short munge_sample(short data) { @@ -162,6 +161,7 @@ static void munge_sample_array(short *array, unsigned int num_elements) static int das16m1_cmd_test(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { + struct das16m1_private_struct *devpriv = dev->private; unsigned int err = 0, tmp, i; /* Step 1 : check if triggers are trivially valid */ @@ -271,6 +271,8 @@ static int das16m1_cmd_test(struct comedi_device *dev, static unsigned int das16m1_set_pacer(struct comedi_device *dev, unsigned int ns, int rounding_flags) { + struct das16m1_private_struct *devpriv = dev->private; + i8253_cascade_ns_to_timer_2div(DAS16M1_XTAL, &(devpriv->divisor1), &(devpriv->divisor2), &ns, rounding_flags & TRIG_ROUND_MASK); @@ -287,6 +289,7 @@ static unsigned int das16m1_set_pacer(struct comedi_device *dev, static int das16m1_cmd_exec(struct comedi_device *dev, struct comedi_subdevice *s) { + struct das16m1_private_struct *devpriv = dev->private; struct comedi_async *async = s->async; struct comedi_cmd *cmd = &async->cmd; unsigned int byte, i; @@ -350,6 +353,8 @@ static int das16m1_cmd_exec(struct comedi_device *dev, static int das16m1_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { + struct das16m1_private_struct *devpriv = dev->private; + devpriv->control_state &= ~INTE & ~PACER_MASK; outb(devpriv->control_state, dev->iobase + DAS16M1_INTR_CONTROL); @@ -360,6 +365,7 @@ static int das16m1_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct das16m1_private_struct *devpriv = dev->private; int i, n; int byte; const int timeout = 1000; @@ -411,6 +417,7 @@ static int das16m1_do_wbits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct das16m1_private_struct *devpriv = dev->private; unsigned int wbits; /* only set bits that have been masked */ @@ -430,6 +437,7 @@ static int das16m1_do_wbits(struct comedi_device *dev, static void das16m1_handler(struct comedi_device *dev, unsigned int status) { + struct das16m1_private_struct *devpriv = dev->private; struct comedi_subdevice *s; struct comedi_async *async; struct comedi_cmd *cmd; @@ -576,6 +584,7 @@ static int das16m1_irq_bits(unsigned int irq) static int das16m1_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct das16m1_private_struct *devpriv; struct comedi_subdevice *s; int ret; unsigned int irq; @@ -585,9 +594,10 @@ static int das16m1_attach(struct comedi_device *dev, iobase = it->options[0]; - ret = alloc_private(dev, sizeof(struct das16m1_private_struct)); - if (ret < 0) + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; + devpriv = dev->private; if (!request_region(iobase, DAS16M1_SIZE, dev->board_name)) { comedi_error(dev, "I/O port conflict\n"); diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index 2555f3297d7b..3754fcb83531 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -454,8 +454,6 @@ struct das1800_private { short ao_update_bits; /* remembers the last write to the 'update' dac */ }; -#define devpriv ((struct das1800_private *)dev->private) - /* analog out range for boards with basic analog out */ static const struct comedi_lrange range_ao_1 = { 1, @@ -501,6 +499,7 @@ static void munge_data(struct comedi_device *dev, uint16_t * array, static void das1800_handle_fifo_half_full(struct comedi_device *dev, struct comedi_subdevice *s) { + struct das1800_private *devpriv = dev->private; int numPoints = 0; /* number of points to read */ struct comedi_cmd *cmd = &s->async->cmd; @@ -520,6 +519,7 @@ static void das1800_handle_fifo_half_full(struct comedi_device *dev, static void das1800_handle_fifo_not_empty(struct comedi_device *dev, struct comedi_subdevice *s) { + struct das1800_private *devpriv = dev->private; short dpnt; int unipolar; struct comedi_cmd *cmd = &s->async->cmd; @@ -548,6 +548,7 @@ static void das1800_flush_dma_channel(struct comedi_device *dev, struct comedi_subdevice *s, unsigned int channel, uint16_t *buffer) { + struct das1800_private *devpriv = dev->private; unsigned int num_bytes, num_samples; struct comedi_cmd *cmd = &s->async->cmd; @@ -578,6 +579,7 @@ static void das1800_flush_dma_channel(struct comedi_device *dev, static void das1800_flush_dma(struct comedi_device *dev, struct comedi_subdevice *s) { + struct das1800_private *devpriv = dev->private; unsigned long flags; const int dual_dma = devpriv->irq_dma_bits & DMA_DUAL; @@ -609,6 +611,7 @@ static void das1800_flush_dma(struct comedi_device *dev, static void das1800_handle_dma(struct comedi_device *dev, struct comedi_subdevice *s, unsigned int status) { + struct das1800_private *devpriv = dev->private; unsigned long flags; const int dual_dma = devpriv->irq_dma_bits & DMA_DUAL; @@ -643,6 +646,8 @@ static void das1800_handle_dma(struct comedi_device *dev, static int das1800_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { + struct das1800_private *devpriv = dev->private; + outb(0x0, dev->iobase + DAS1800_STATUS); /* disable conversions */ outb(0x0, dev->iobase + DAS1800_CONTROL_B); /* disable interrupts and dma */ outb(0x0, dev->iobase + DAS1800_CONTROL_A); /* disable and clear fifo and stop triggering */ @@ -656,6 +661,7 @@ static int das1800_cancel(struct comedi_device *dev, struct comedi_subdevice *s) /* the guts of the interrupt handler, that is shared with das1800_ai_poll */ static void das1800_ai_handler(struct comedi_device *dev) { + struct das1800_private *devpriv = dev->private; struct comedi_subdevice *s = &dev->subdevices[0]; struct comedi_async *async = s->async; struct comedi_cmd *cmd = &async->cmd; @@ -783,6 +789,7 @@ static int das1800_ai_do_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { + struct das1800_private *devpriv = dev->private; int err = 0; unsigned int tmp_arg; int i; @@ -1006,6 +1013,7 @@ static int control_c_bits(const struct comedi_cmd *cmd) /* loads counters with divisor1, divisor2 from private structure */ static int das1800_set_frequency(struct comedi_device *dev) { + struct das1800_private *devpriv = dev->private; int err = 0; /* counter 1, mode 2 */ @@ -1026,6 +1034,7 @@ static int das1800_set_frequency(struct comedi_device *dev) static int setup_counters(struct comedi_device *dev, const struct comedi_cmd *cmd) { + struct das1800_private *devpriv = dev->private; unsigned int period; /* setup cascaded counters for conversion/scan frequency */ @@ -1107,6 +1116,7 @@ static unsigned int suggest_transfer_size(const struct comedi_cmd *cmd) /* sets up dma */ static void setup_dma(struct comedi_device *dev, const struct comedi_cmd *cmd) { + struct das1800_private *devpriv = dev->private; unsigned long lock_flags; const int dual_dma = devpriv->irq_dma_bits & DMA_DUAL; @@ -1174,6 +1184,7 @@ static void program_chanlist(struct comedi_device *dev, static int das1800_ai_do_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { + struct das1800_private *devpriv = dev->private; int ret; int control_a, control_c; struct comedi_async *async = s->async; @@ -1300,6 +1311,7 @@ static int das1800_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct das1800_private *devpriv = dev->private; int chan = CR_CHAN(insn->chanspec); /* int range = CR_RANGE(insn->chanspec); */ int update_chan = thisboard->ao_n_chan - 1; @@ -1342,6 +1354,7 @@ static int das1800_do_wbits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct das1800_private *devpriv = dev->private; unsigned int wbits; /* only set bits that have been masked */ @@ -1361,6 +1374,7 @@ static int das1800_do_wbits(struct comedi_device *dev, static int das1800_init_dma(struct comedi_device *dev, unsigned int dma0, unsigned int dma1) { + struct das1800_private *devpriv = dev->private; unsigned long flags; /* need an irq to do dma */ @@ -1518,6 +1532,7 @@ static int das1800_probe(struct comedi_device *dev) static int das1800_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct das1800_private *devpriv; struct comedi_subdevice *s; unsigned long iobase = it->options[0]; unsigned int irq = it->options[1]; @@ -1527,9 +1542,10 @@ static int das1800_attach(struct comedi_device *dev, int board; int retval; - /* allocate and initialize dev->private */ - if (alloc_private(dev, sizeof(struct das1800_private)) < 0) - return -ENOMEM; + retval = alloc_private(dev, sizeof(*devpriv)); + if (retval) + return retval; + devpriv = dev->private; printk(KERN_DEBUG "comedi%d: %s: io 0x%lx", dev->minor, dev->driver->driver_name, iobase); @@ -1699,11 +1715,13 @@ static int das1800_attach(struct comedi_device *dev, static void das1800_detach(struct comedi_device *dev) { + struct das1800_private *devpriv = dev->private; + if (dev->iobase) release_region(dev->iobase, DAS1800_SIZE); if (dev->irq) free_irq(dev->irq, dev); - if (dev->private) { + if (devpriv) { if (devpriv->iobase2) release_region(devpriv->iobase2, DAS1800_SIZE); if (devpriv->dma0) diff --git a/drivers/staging/comedi/drivers/das6402.c b/drivers/staging/comedi/drivers/das6402.c index e134c46dedff..8029e370b2d8 100644 --- a/drivers/staging/comedi/drivers/das6402.c +++ b/drivers/staging/comedi/drivers/das6402.c @@ -104,7 +104,6 @@ struct das6402_private { int das6402_ignoreirq; }; -#define devpriv ((struct das6402_private *)dev->private) static void das6402_ai_fifo_dregs(struct comedi_device *dev, struct comedi_subdevice *s) @@ -152,6 +151,7 @@ static void das6402_setcounter(struct comedi_device *dev) static irqreturn_t intr_handler(int irq, void *d) { struct comedi_device *dev = d; + struct das6402_private *devpriv = dev->private; struct comedi_subdevice *s = &dev->subdevices[0]; if (!dev->attached || devpriv->das6402_ignoreirq) { @@ -196,6 +196,8 @@ static void das6402_ai_fifo_read(struct comedi_device *dev, short *data, int n) static int das6402_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { + struct das6402_private *devpriv = dev->private; + /* * This function should reset the board from whatever condition it * is in (i.e., acquiring data), to a non-active state. @@ -217,6 +219,8 @@ static int das6402_ai_cancel(struct comedi_device *dev, static int das6402_ai_mode2(struct comedi_device *dev, struct comedi_subdevice *s, comedi_trig * it) { + struct das6402_private *devpriv = dev->private; + devpriv->das6402_ignoreirq = 1; dev_dbg(dev->class_dev, "Starting acquisition\n"); outb_p(0x03, dev->iobase + 10); /* enable external trigging */ @@ -236,6 +240,7 @@ static int das6402_ai_mode2(struct comedi_device *dev, static int board_init(struct comedi_device *dev) { + struct das6402_private *devpriv = dev->private; BYTE b; devpriv->das6402_ignoreirq = 1; @@ -277,6 +282,7 @@ static int board_init(struct comedi_device *dev) static int das6402_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct das6402_private *devpriv; unsigned int irq; unsigned long iobase; int ret; @@ -303,9 +309,11 @@ static int das6402_attach(struct comedi_device *dev, return ret; dev->irq = irq; - ret = alloc_private(dev, sizeof(struct das6402_private)); - if (ret < 0) + + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; + devpriv = dev->private; ret = comedi_alloc_subdevices(dev, 1); if (ret) diff --git a/drivers/staging/comedi/drivers/das800.c b/drivers/staging/comedi/drivers/das800.c index 215deac0a396..2a6df6b6ae39 100644 --- a/drivers/staging/comedi/drivers/das800.c +++ b/drivers/staging/comedi/drivers/das800.c @@ -241,8 +241,6 @@ struct das800_private { volatile int do_bits; /* digital output bits */ }; -#define devpriv ((struct das800_private *)dev->private) - static int das800_attach(struct comedi_device *dev, struct comedi_devconfig *it); static void das800_detach(struct comedi_device *dev); @@ -367,6 +365,7 @@ static irqreturn_t das800_interrupt(int irq, void *d) short i; /* loop index */ short dataPoint = 0; struct comedi_device *dev = d; + struct das800_private *devpriv = dev->private; struct comedi_subdevice *s = dev->read_subdev; /* analog input subdevice */ struct comedi_async *async; int status; @@ -461,6 +460,7 @@ static irqreturn_t das800_interrupt(int irq, void *d) static int das800_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct das800_private *devpriv; struct comedi_subdevice *s; unsigned long iobase = it->options[0]; unsigned int irq = it->options[1]; @@ -472,9 +472,10 @@ static int das800_attach(struct comedi_device *dev, struct comedi_devconfig *it) if (irq) dev_dbg(dev->class_dev, "irq %u\n", irq); - /* allocate and initialize dev->private */ - if (alloc_private(dev, sizeof(struct das800_private)) < 0) - return -ENOMEM; + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; + devpriv = dev->private; if (iobase == 0) { dev_err(dev->class_dev, @@ -569,6 +570,8 @@ static void das800_detach(struct comedi_device *dev) static int das800_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { + struct das800_private *devpriv = dev->private; + devpriv->forever = 0; devpriv->count = 0; disable_das800(dev); @@ -578,7 +581,9 @@ static int das800_cancel(struct comedi_device *dev, struct comedi_subdevice *s) /* enable_das800 makes the card start taking hardware triggered conversions */ static void enable_das800(struct comedi_device *dev) { + struct das800_private *devpriv = dev->private; unsigned long irq_flags; + spin_lock_irqsave(&dev->spinlock, irq_flags); /* enable fifo-half full interrupts for cio-das802/16 */ if (thisboard->resolution == 16) @@ -604,6 +609,7 @@ static int das800_ai_do_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { + struct das800_private *devpriv = dev->private; int err = 0; int tmp; int gain, startChan; @@ -710,6 +716,7 @@ static int das800_ai_do_cmdtest(struct comedi_device *dev, static int das800_ai_do_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { + struct das800_private *devpriv = dev->private; int startChan, endChan, scan, gain; int conv_bits; unsigned long irq_flags; @@ -793,6 +800,7 @@ static int das800_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct das800_private *devpriv = dev->private; int i, n; int chan; int range; @@ -862,6 +870,7 @@ static int das800_do_wbits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct das800_private *devpriv = dev->private; int wbits; unsigned long irq_flags; @@ -885,6 +894,7 @@ static int das800_do_wbits(struct comedi_device *dev, /* loads counters with divisor1, divisor2 from private structure */ static int das800_set_frequency(struct comedi_device *dev) { + struct das800_private *devpriv = dev->private; int err = 0; if (i8254_load(dev->iobase + DAS800_8254, 0, 1, devpriv->divisor1, 2)) diff --git a/drivers/staging/comedi/drivers/dmm32at.c b/drivers/staging/comedi/drivers/dmm32at.c index 824b692db5f8..c8b7a031c48f 100644 --- a/drivers/staging/comedi/drivers/dmm32at.c +++ b/drivers/staging/comedi/drivers/dmm32at.c @@ -793,8 +793,9 @@ static int dmm32at_attach(struct comedi_device *dev, dev->irq = irq; } - if (alloc_private(dev, sizeof(*devpriv)) < 0) - return -ENOMEM; + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; devpriv = dev->private; ret = comedi_alloc_subdevices(dev, 3); diff --git a/drivers/staging/comedi/drivers/dt2801.c b/drivers/staging/comedi/drivers/dt2801.c index c59a652a1194..da139d212ce3 100644 --- a/drivers/staging/comedi/drivers/dt2801.c +++ b/drivers/staging/comedi/drivers/dt2801.c @@ -233,8 +233,6 @@ struct dt2801_private { unsigned int ao_readback[2]; }; -#define devpriv ((struct dt2801_private *)dev->private) - /* These are the low-level routines: writecommand: write a command to the board writedata: write data byte @@ -508,6 +506,8 @@ static int dt2801_ao_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dt2801_private *devpriv = dev->private; + data[0] = devpriv->ao_readback[CR_CHAN(insn->chanspec)]; return 1; @@ -517,6 +517,8 @@ static int dt2801_ao_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dt2801_private *devpriv = dev->private; + dt2801_writecmd(dev, DT_C_WRITE_DAIM); dt2801_writedata(dev, CR_CHAN(insn->chanspec)); dt2801_writedata2(dev, data[0]); @@ -590,6 +592,7 @@ static int dt2801_dio_insn_config(struct comedi_device *dev, */ static int dt2801_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct dt2801_private *devpriv; struct comedi_subdevice *s; unsigned long iobase; int board_code, type; @@ -630,9 +633,10 @@ havetype: if (ret) goto out; - ret = alloc_private(dev, sizeof(struct dt2801_private)); - if (ret < 0) + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; + devpriv = dev->private; dev->board_name = boardtype.name; diff --git a/drivers/staging/comedi/drivers/dt2811.c b/drivers/staging/comedi/drivers/dt2811.c index d3a8c1aec9d6..c4a7768971d2 100644 --- a/drivers/staging/comedi/drivers/dt2811.c +++ b/drivers/staging/comedi/drivers/dt2811.c @@ -226,8 +226,6 @@ struct dt2811_private { unsigned int ao_readback[2]; }; -#define devpriv ((struct dt2811_private *)dev->private) - static const struct comedi_lrange *dac_range_types[] = { &range_bipolar5, &range_bipolar2_5, @@ -242,6 +240,7 @@ static irqreturn_t dt2811_interrupt(int irq, void *d) int lo, hi; int data; struct comedi_device *dev = d; + struct dt2811_private *devpriv = dev->private; if (!dev->attached) { comedi_error(dev, "spurious interrupt"); @@ -318,6 +317,7 @@ int dt2811_adtrig(kdev_t minor, comedi_adtrig *adtrig) static int dt2811_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dt2811_private *devpriv = dev->private; int i; int chan; @@ -337,6 +337,7 @@ static int dt2811_ao_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dt2811_private *devpriv = dev->private; int i; int chan; @@ -397,6 +398,7 @@ static int dt2811_attach(struct comedi_device *dev, struct comedi_devconfig *it) /* long flags; */ const struct dt2811_board *board = comedi_board(dev); + struct dt2811_private *devpriv; int ret; struct comedi_subdevice *s; unsigned long iobase; @@ -463,9 +465,10 @@ static int dt2811_attach(struct comedi_device *dev, struct comedi_devconfig *it) if (ret) return ret; - ret = alloc_private(dev, sizeof(struct dt2811_private)); - if (ret < 0) + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; + devpriv = dev->private; switch (it->options[2]) { case 0: diff --git a/drivers/staging/comedi/drivers/dt2814.c b/drivers/staging/comedi/drivers/dt2814.c index 064a8f215e4d..4b81ae33ca02 100644 --- a/drivers/staging/comedi/drivers/dt2814.c +++ b/drivers/staging/comedi/drivers/dt2814.c @@ -68,8 +68,6 @@ struct dt2814_private { int curadchan; }; -#define devpriv ((struct dt2814_private *)dev->private) - #define DT2814_TIMEOUT 10 #define DT2814_MAX_SPEED 100000 /* Arbitrary 10 khz limit */ @@ -200,6 +198,7 @@ static int dt2814_ai_cmdtest(struct comedi_device *dev, static int dt2814_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { + struct dt2814_private *devpriv = dev->private; struct comedi_cmd *cmd = &s->async->cmd; int chan; int trigvar; @@ -221,6 +220,7 @@ static irqreturn_t dt2814_interrupt(int irq, void *d) { int lo, hi; struct comedi_device *dev = d; + struct dt2814_private *devpriv = dev->private; struct comedi_subdevice *s; int data; @@ -258,6 +258,7 @@ static irqreturn_t dt2814_interrupt(int irq, void *d) static int dt2814_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct dt2814_private *devpriv; int i, irq; int ret; struct comedi_subdevice *s; @@ -324,9 +325,10 @@ static int dt2814_attach(struct comedi_device *dev, struct comedi_devconfig *it) if (ret) return ret; - ret = alloc_private(dev, sizeof(struct dt2814_private)); - if (ret < 0) + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; + devpriv = dev->private; s = &dev->subdevices[0]; dev->read_subdev = s; diff --git a/drivers/staging/comedi/drivers/dt2815.c b/drivers/staging/comedi/drivers/dt2815.c index b9692ef64c41..1f1998f3d245 100644 --- a/drivers/staging/comedi/drivers/dt2815.c +++ b/drivers/staging/comedi/drivers/dt2815.c @@ -78,8 +78,6 @@ struct dt2815_private { unsigned int ao_readback[8]; }; -#define devpriv ((struct dt2815_private *)dev->private) - static int dt2815_wait_for_status(struct comedi_device *dev, int status) { int i; @@ -95,6 +93,7 @@ static int dt2815_ao_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dt2815_private *devpriv = dev->private; int i; int chan = CR_CHAN(insn->chanspec); @@ -107,6 +106,7 @@ static int dt2815_ao_insn_read(struct comedi_device *dev, static int dt2815_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dt2815_private *devpriv = dev->private; int i; int chan = CR_CHAN(insn->chanspec); unsigned int status; @@ -162,6 +162,7 @@ static int dt2815_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s, static int dt2815_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct dt2815_private *devpriv; struct comedi_subdevice *s; int i; const struct comedi_lrange *current_range_type, *voltage_range_type; @@ -182,8 +183,10 @@ static int dt2815_attach(struct comedi_device *dev, struct comedi_devconfig *it) if (ret) return ret; - if (alloc_private(dev, sizeof(struct dt2815_private)) < 0) - return -ENOMEM; + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; + devpriv = dev->private; s = &dev->subdevices[0]; /* ao subdevice */ diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c index 78d340716d1e..f25246833213 100644 --- a/drivers/staging/comedi/drivers/dt282x.c +++ b/drivers/staging/comedi/drivers/dt282x.c @@ -248,7 +248,6 @@ struct dt282x_private { int dma_dir; }; -#define devpriv ((struct dt282x_private *)dev->private) #define boardtype (*(const struct dt282x_board *)dev->board_ptr) /* @@ -290,6 +289,7 @@ static int dt282x_grab_dma(struct comedi_device *dev, int dma1, int dma2); static void dt282x_munge(struct comedi_device *dev, short *buf, unsigned int nbytes) { + struct dt282x_private *devpriv = dev->private; unsigned int i; unsigned short mask = (1 << boardtype.adbits) - 1; unsigned short sign = 1 << (boardtype.adbits - 1); @@ -309,6 +309,7 @@ static void dt282x_munge(struct comedi_device *dev, short *buf, static void dt282x_ao_dma_interrupt(struct comedi_device *dev) { + struct dt282x_private *devpriv = dev->private; void *ptr; int size; int i; @@ -341,6 +342,7 @@ static void dt282x_ao_dma_interrupt(struct comedi_device *dev) static void dt282x_ai_dma_interrupt(struct comedi_device *dev) { + struct dt282x_private *devpriv = dev->private; void *ptr; int size; int i; @@ -393,6 +395,7 @@ static void dt282x_ai_dma_interrupt(struct comedi_device *dev) static int prep_ai_dma(struct comedi_device *dev, int dma_index, int n) { + struct dt282x_private *devpriv = dev->private; int dma_chan; unsigned long dma_ptr; unsigned long flags; @@ -424,6 +427,7 @@ static int prep_ai_dma(struct comedi_device *dev, int dma_index, int n) static int prep_ao_dma(struct comedi_device *dev, int dma_index, int n) { + struct dt282x_private *devpriv = dev->private; int dma_chan; unsigned long dma_ptr; unsigned long flags; @@ -447,6 +451,7 @@ static int prep_ao_dma(struct comedi_device *dev, int dma_index, int n) static irqreturn_t dt282x_interrupt(int irq, void *d) { struct comedi_device *dev = d; + struct dt282x_private *devpriv = dev->private; struct comedi_subdevice *s; struct comedi_subdevice *s_ao; unsigned int supcsr, adcsr, dacsr; @@ -525,6 +530,7 @@ static irqreturn_t dt282x_interrupt(int irq, void *d) static void dt282x_load_changain(struct comedi_device *dev, int n, unsigned int *chanlist) { + struct dt282x_private *devpriv = dev->private; unsigned int i; unsigned int chan, range; @@ -548,6 +554,7 @@ static int dt282x_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dt282x_private *devpriv = dev->private; int i; /* XXX should we really be enabling the ad clock here? */ @@ -671,6 +678,7 @@ static int dt282x_ai_cmdtest(struct comedi_device *dev, static int dt282x_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { const struct dt282x_board *board = comedi_board(dev); + struct dt282x_private *devpriv = dev->private; struct comedi_cmd *cmd = &s->async->cmd; int timer; @@ -733,6 +741,8 @@ static int dt282x_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) static void dt282x_disable_dma(struct comedi_device *dev) { + struct dt282x_private *devpriv = dev->private; + if (devpriv->usedma) { disable_dma(devpriv->dma[0].chan); disable_dma(devpriv->dma[1].chan); @@ -742,6 +752,8 @@ static void dt282x_disable_dma(struct comedi_device *dev) static int dt282x_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { + struct dt282x_private *devpriv = dev->private; + dt282x_disable_dma(dev); devpriv->adcsr = 0; @@ -794,6 +806,8 @@ static int dt282x_ao_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dt282x_private *devpriv = dev->private; + data[0] = devpriv->ao[CR_CHAN(insn->chanspec)]; return 1; @@ -803,6 +817,7 @@ static int dt282x_ao_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dt282x_private *devpriv = dev->private; short d; unsigned int chan; @@ -908,6 +923,7 @@ static int dt282x_ao_cmdtest(struct comedi_device *dev, static int dt282x_ao_inttrig(struct comedi_device *dev, struct comedi_subdevice *s, unsigned int x) { + struct dt282x_private *devpriv = dev->private; int size; if (x != 0) @@ -937,6 +953,7 @@ static int dt282x_ao_inttrig(struct comedi_device *dev, static int dt282x_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { + struct dt282x_private *devpriv = dev->private; int timer; struct comedi_cmd *cmd = &s->async->cmd; @@ -973,6 +990,8 @@ static int dt282x_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s) static int dt282x_ao_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { + struct dt282x_private *devpriv = dev->private; + dt282x_disable_dma(dev); devpriv->dacsr = 0; @@ -1003,6 +1022,7 @@ static int dt282x_dio_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dt282x_private *devpriv = dev->private; int mask; mask = (CR_CHAN(insn->chanspec) < 8) ? 0x00ff : 0xff00; @@ -1074,6 +1094,7 @@ enum { /* i/o base, irq, dma channels */ static int dt282x_grab_dma(struct comedi_device *dev, int dma1, int dma2) { + struct dt282x_private *devpriv = dev->private; int ret; devpriv->usedma = 0; @@ -1135,6 +1156,7 @@ static int dt282x_grab_dma(struct comedi_device *dev, int dma1, int dma2) static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it) { const struct dt282x_board *board = comedi_board(dev); + struct dt282x_private *devpriv; int i, irq; int ret; struct comedi_subdevice *s; @@ -1217,9 +1239,10 @@ static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it) #endif } - ret = alloc_private(dev, sizeof(struct dt282x_private)); - if (ret < 0) + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; + devpriv = dev->private; ret = dt282x_grab_dma(dev, it->options[opt_dma1], it->options[opt_dma2]); @@ -1292,6 +1315,8 @@ static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it) static void dt282x_detach(struct comedi_device *dev) { + struct dt282x_private *devpriv = dev->private; + if (dev->irq) free_irq(dev->irq, dev); if (dev->iobase) diff --git a/drivers/staging/comedi/drivers/dt3000.c b/drivers/staging/comedi/drivers/dt3000.c index 43d05ef97157..e71d880bddaa 100644 --- a/drivers/staging/comedi/drivers/dt3000.c +++ b/drivers/staging/comedi/drivers/dt3000.c @@ -257,8 +257,6 @@ struct dt3k_private { unsigned int ai_rear; }; -#define devpriv ((struct dt3k_private *)dev->private) - static void dt3k_ai_empty_fifo(struct comedi_device *dev, struct comedi_subdevice *s); static int dt3k_ns_to_timer(unsigned int timer_base, unsigned int *arg, @@ -273,6 +271,7 @@ static void debug_intr_flags(unsigned int flags); static int dt3k_send_cmd(struct comedi_device *dev, unsigned int cmd) { + struct dt3k_private *devpriv = dev->private; int i; unsigned int status = 0; @@ -297,6 +296,8 @@ static unsigned int dt3k_readsingle(struct comedi_device *dev, unsigned int subsys, unsigned int chan, unsigned int gain) { + struct dt3k_private *devpriv = dev->private; + writew(subsys, devpriv->io_addr + DPR_SubSys); writew(chan, devpriv->io_addr + DPR_Params(0)); @@ -310,6 +311,8 @@ static unsigned int dt3k_readsingle(struct comedi_device *dev, static void dt3k_writesingle(struct comedi_device *dev, unsigned int subsys, unsigned int chan, unsigned int data) { + struct dt3k_private *devpriv = dev->private; + writew(subsys, devpriv->io_addr + DPR_SubSys); writew(chan, devpriv->io_addr + DPR_Params(0)); @@ -326,6 +329,7 @@ static int debug_n_ints; static irqreturn_t dt3k_interrupt(int irq, void *d) { struct comedi_device *dev = d; + struct dt3k_private *devpriv = dev->private; struct comedi_subdevice *s; unsigned int status; @@ -377,6 +381,7 @@ static void debug_intr_flags(unsigned int flags) static void dt3k_ai_empty_fifo(struct comedi_device *dev, struct comedi_subdevice *s) { + struct dt3k_private *devpriv = dev->private; int front; int rear; int count; @@ -550,6 +555,7 @@ static int dt3k_ns_to_timer(unsigned int timer_base, unsigned int *nanosec, static int dt3k_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { + struct dt3k_private *devpriv = dev->private; struct comedi_cmd *cmd = &s->async->cmd; int i; unsigned int chan, range, aref; @@ -618,6 +624,7 @@ static int dt3k_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) static int dt3k_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { + struct dt3k_private *devpriv = dev->private; int ret; writew(SUBS_AI, devpriv->io_addr + DPR_SubSys); @@ -648,6 +655,7 @@ static int dt3k_ai_insn(struct comedi_device *dev, struct comedi_subdevice *s, static int dt3k_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dt3k_private *devpriv = dev->private; int i; unsigned int chan; @@ -664,6 +672,7 @@ static int dt3k_ao_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dt3k_private *devpriv = dev->private; int i; unsigned int chan; @@ -676,6 +685,8 @@ static int dt3k_ao_insn_read(struct comedi_device *dev, static void dt3k_dio_config(struct comedi_device *dev, int bits) { + struct dt3k_private *devpriv = dev->private; + /* XXX */ writew(SUBS_DOUT, devpriv->io_addr + DPR_SubSys); @@ -739,6 +750,7 @@ static int dt3k_mem_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct dt3k_private *devpriv = dev->private; unsigned int addr = CR_CHAN(insn->chanspec); int i; @@ -786,6 +798,7 @@ static struct pci_dev *dt3000_find_pci_dev(struct comedi_device *dev, static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct dt3k_private *devpriv; struct pci_dev *pcidev; struct comedi_subdevice *s; resource_size_t pci_base; @@ -793,9 +806,10 @@ static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it) dev_dbg(dev->class_dev, "dt3000:\n"); - ret = alloc_private(dev, sizeof(struct dt3k_private)); - if (ret < 0) + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; + devpriv = dev->private; pcidev = dt3000_find_pci_dev(dev, it); if (!pcidev) @@ -885,6 +899,7 @@ static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it) static void dt3000_detach(struct comedi_device *dev) { struct pci_dev *pcidev = comedi_to_pci_dev(dev); + struct dt3k_private *devpriv = dev->private; if (dev->irq) free_irq(dev->irq, dev); diff --git a/drivers/staging/comedi/drivers/dt9812.c b/drivers/staging/comedi/drivers/dt9812.c index bc6f409b7e19..71d38fc5c160 100644 --- a/drivers/staging/comedi/drivers/dt9812.c +++ b/drivers/staging/comedi/drivers/dt9812.c @@ -323,9 +323,6 @@ static const struct comedi_lrange dt9812_2pt5_aout_range = { 1, { static struct slot_dt9812 dt9812[DT9812_NUM_SLOTS]; -/* Useful shorthand access to private data */ -#define devpriv ((struct comedi_dt9812 *)dev->private) - static inline struct usb_dt9812 *to_dt9812_dev(struct kref *d) { return container_of(d, struct usb_dt9812, kref); @@ -893,6 +890,7 @@ static struct usb_driver dt9812_usb_driver = { static int dt9812_comedi_open(struct comedi_device *dev) { + struct comedi_dt9812 *devpriv = dev->private; int result = -ENODEV; down(&devpriv->slot->mutex); @@ -947,6 +945,7 @@ static int dt9812_di_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct comedi_dt9812 *devpriv = dev->private; int n; u8 bits = 0; @@ -960,6 +959,7 @@ static int dt9812_do_winsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct comedi_dt9812 *devpriv = dev->private; int n; u8 bits = 0; @@ -979,6 +979,7 @@ static int dt9812_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct comedi_dt9812 *devpriv = dev->private; int n; for (n = 0; n < insn->n; n++) { @@ -995,6 +996,7 @@ static int dt9812_ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct comedi_dt9812 *devpriv = dev->private; int n; u16 value; @@ -1010,6 +1012,7 @@ static int dt9812_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct comedi_dt9812 *devpriv = dev->private; int n; for (n = 0; n < insn->n; n++) @@ -1019,14 +1022,17 @@ static int dt9812_ao_winsn(struct comedi_device *dev, static int dt9812_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct comedi_dt9812 *devpriv; int i; struct comedi_subdevice *s; int ret; dev->board_name = "dt9812"; - if (alloc_private(dev, sizeof(struct comedi_dt9812)) < 0) - return -ENOMEM; + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; + devpriv = dev->private; /* * Special open routine, since USB unit may be unattached at diff --git a/drivers/staging/comedi/drivers/fl512.c b/drivers/staging/comedi/drivers/fl512.c index ae8e8f460295..c1c24b062555 100644 --- a/drivers/staging/comedi/drivers/fl512.c +++ b/drivers/staging/comedi/drivers/fl512.c @@ -29,8 +29,6 @@ struct fl512_private { short ao_readback[2]; }; -#define devpriv ((struct fl512_private *) dev->private) - static const struct comedi_lrange range_fl512 = { 4, { BIP_RANGE(0.5), BIP_RANGE(1), @@ -75,6 +73,7 @@ static int fl512_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct fl512_private *devpriv = dev->private; int n; int chan = CR_CHAN(insn->chanspec); /* get chan to write */ unsigned long iobase = dev->iobase; /* get base address */ @@ -99,6 +98,7 @@ static int fl512_ao_insn_readback(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct fl512_private *devpriv = dev->private; int n; int chan = CR_CHAN(insn->chanspec); @@ -110,6 +110,7 @@ static int fl512_ao_insn_readback(struct comedi_device *dev, static int fl512_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct fl512_private *devpriv; unsigned long iobase; int ret; @@ -125,8 +126,11 @@ static int fl512_attach(struct comedi_device *dev, struct comedi_devconfig *it) } dev->iobase = iobase; dev->board_name = "fl512"; - if (alloc_private(dev, sizeof(struct fl512_private)) < 0) - return -ENOMEM; + + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; + devpriv = dev->private; #if DEBUG printk(KERN_DEBUG "malloc ok\n"); diff --git a/drivers/staging/comedi/drivers/icp_multi.c b/drivers/staging/comedi/drivers/icp_multi.c index d696d4d51e28..8eb3a87b5b8c 100644 --- a/drivers/staging/comedi/drivers/icp_multi.c +++ b/drivers/staging/comedi/drivers/icp_multi.c @@ -506,7 +506,7 @@ static int icp_multi_attach_pci(struct comedi_device *dev, dev->board_name = dev->driver->driver_name; ret = alloc_private(dev, sizeof(*devpriv)); - if (ret < 0) + if (ret) return ret; devpriv = dev->private; diff --git a/drivers/staging/comedi/drivers/ii_pci20kc.c b/drivers/staging/comedi/drivers/ii_pci20kc.c index 65ff1c9b973c..64a4acd0aa5d 100644 --- a/drivers/staging/comedi/drivers/ii_pci20kc.c +++ b/drivers/staging/comedi/drivers/ii_pci20kc.c @@ -156,7 +156,6 @@ struct pci20xxx_private { union pci20xxx_subdev_private subdev_private[PCI20000_MODULES]; }; -#define devpriv ((struct pci20xxx_private *)dev->private) #define CHAN (CR_CHAN(it->chanlist[0])) static int pci20006_init(struct comedi_device *dev, struct comedi_subdevice *s, @@ -196,6 +195,7 @@ static int pci20xxx_dio_init(struct comedi_device *dev, static int pci20xxx_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct pci20xxx_private *devpriv; unsigned char i; int ret; int id; @@ -206,9 +206,10 @@ static int pci20xxx_attach(struct comedi_device *dev, if (ret) return ret; - ret = alloc_private(dev, sizeof(struct pci20xxx_private)); - if (ret < 0) + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; + devpriv = dev->private; devpriv->ioaddr = (void __iomem *)(unsigned long)it->options[0]; dev->board_name = "pci20kc"; @@ -541,6 +542,7 @@ static int pci20xxx_dio_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct pci20xxx_private *devpriv = dev->private; unsigned int mask = data[0]; s->state &= ~mask; @@ -571,6 +573,7 @@ static int pci20xxx_dio_insn_bits(struct comedi_device *dev, static void pci20xxx_dio_config(struct comedi_device *dev, struct comedi_subdevice *s) { + struct pci20xxx_private *devpriv = dev->private; unsigned char control_01; unsigned char control_23; unsigned char buffer; @@ -627,6 +630,8 @@ static void pci20xxx_dio_config(struct comedi_device *dev, #if 0 static void pci20xxx_do(struct comedi_device *dev, struct comedi_subdevice *s) { + struct pci20xxx_private *devpriv = dev->private; + /* XXX if the channel is configured for input, does this do bad things? */ /* XXX it would be a good idea to only update the registers @@ -641,9 +646,10 @@ static void pci20xxx_do(struct comedi_device *dev, struct comedi_subdevice *s) static unsigned int pci20xxx_di(struct comedi_device *dev, struct comedi_subdevice *s) { - /* XXX same note as above */ + struct pci20xxx_private *devpriv = dev->private; unsigned int bits; + /* XXX same note as above */ bits = readb(devpriv->ioaddr + PCI20000_DIO_0); bits |= readb(devpriv->ioaddr + PCI20000_DIO_1) << 8; bits |= readb(devpriv->ioaddr + PCI20000_DIO_2) << 16; diff --git a/drivers/staging/comedi/drivers/jr3_pci.c b/drivers/staging/comedi/drivers/jr3_pci.c index a5ab490571bd..69378dd90e28 100644 --- a/drivers/staging/comedi/drivers/jr3_pci.c +++ b/drivers/staging/comedi/drivers/jr3_pci.c @@ -762,11 +762,12 @@ static int jr3_pci_attach(struct comedi_device *dev, return -EINVAL; } - result = alloc_private(dev, sizeof(struct jr3_pci_dev_private)); - if (result < 0) - return -ENOMEM; - card = NULL; + result = alloc_private(dev, sizeof(*devpriv)); + if (result) + return result; devpriv = dev->private; + + card = NULL; init_timer(&devpriv->timer); while (1) { card = pci_get_device(PCI_VENDOR_ID_JR3, PCI_ANY_ID, card); diff --git a/drivers/staging/comedi/drivers/me_daq.c b/drivers/staging/comedi/drivers/me_daq.c index 2ce0b14af589..c1bc5c6ce0c5 100644 --- a/drivers/staging/comedi/drivers/me_daq.c +++ b/drivers/staging/comedi/drivers/me_daq.c @@ -234,8 +234,6 @@ struct me_private_data { int ao_readback[4]; /* Mirror of analog output data */ }; -#define dev_private ((struct me_private_data *)dev->private) - /* * ------------------------------------------------------------------ * @@ -260,6 +258,7 @@ static int me_dio_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct me_private_data *dev_private = dev->private; int bits; int mask = 1 << CR_CHAN(insn->chanspec); @@ -297,7 +296,9 @@ static int me_dio_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct me_private_data *dev_private = dev->private; unsigned int mask = data[0]; + s->state &= ~mask; s->state |= (mask & data[1]); @@ -334,6 +335,7 @@ static int me_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct me_private_data *dev_private = dev->private; unsigned short value; int chan = CR_CHAN((&insn->chanspec)[0]); int rang = CR_RANGE((&insn->chanspec)[0]); @@ -407,6 +409,8 @@ static int me_ai_insn_read(struct comedi_device *dev, /* Cancel analog input autoscan */ static int me_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { + struct me_private_data *dev_private = dev->private; + /* disable interrupts */ /* stop any running conversion */ @@ -443,6 +447,7 @@ static int me_ao_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct me_private_data *dev_private = dev->private; int chan; int rang; int i; @@ -494,6 +499,7 @@ static int me_ao_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct me_private_data *dev_private = dev->private; int i; for (i = 0; i < insn->n; i++) { @@ -516,6 +522,7 @@ static int me_ao_insn_read(struct comedi_device *dev, static int me2600_xilinx_download(struct comedi_device *dev, const u8 *data, size_t size) { + struct me_private_data *dev_private = dev->private; unsigned int value; unsigned int file_length; unsigned int i; @@ -599,6 +606,8 @@ static int me2600_upload_firmware(struct comedi_device *dev) /* Reset device */ static int me_reset(struct comedi_device *dev) { + struct me_private_data *dev_private = dev->private; + /* Reset board */ writew(0x00, dev_private->me_regbase + ME_CONTROL_1); writew(0x00, dev_private->me_regbase + ME_CONTROL_2); @@ -630,6 +639,7 @@ static const void *me_find_boardinfo(struct comedi_device *dev, static int me_attach_pci(struct comedi_device *dev, struct pci_dev *pcidev) { const struct me_board *board; + struct me_private_data *dev_private; struct comedi_subdevice *s; resource_size_t plx_regbase_tmp; unsigned long plx_regbase_size_tmp; @@ -648,9 +658,10 @@ static int me_attach_pci(struct comedi_device *dev, struct pci_dev *pcidev) dev->board_ptr = board; dev->board_name = board->name; - /* Allocate private memory */ - if (alloc_private(dev, sizeof(struct me_private_data)) < 0) - return -ENOMEM; + error = alloc_private(dev, sizeof(*dev_private)); + if (error) + return error; + dev_private = dev->private; /* Enable PCI device and request PCI regions */ if (comedi_pci_enable(pcidev, dev->board_name) < 0) { @@ -775,6 +786,7 @@ static int me_attach_pci(struct comedi_device *dev, struct pci_dev *pcidev) static void me_detach(struct comedi_device *dev) { struct pci_dev *pcidev = comedi_to_pci_dev(dev); + struct me_private_data *dev_private = dev->private; if (dev_private) { if (dev_private->me_regbase) { diff --git a/drivers/staging/comedi/drivers/mpc624.c b/drivers/staging/comedi/drivers/mpc624.c index f8b7faefc961..3e8892c82094 100644 --- a/drivers/staging/comedi/drivers/mpc624.c +++ b/drivers/staging/comedi/drivers/mpc624.c @@ -122,13 +122,12 @@ Configuration Options: #define MPC624_SPEED_6_875_Hz \ (MPC624_OSR4 | MPC624_OSR3 | MPC624_OSR2 | MPC624_OSR1 | MPC624_OSR0) /* -------------------------------------------------------------------------- */ -struct skel_private { +struct mpc624_private { /* set by mpc624_attach() from driver's parameters */ unsigned long int ulConvertionRate; }; -#define devpriv ((struct skel_private *)dev->private) /* -------------------------------------------------------------------------- */ static const struct comedi_lrange range_mpc624_bipolar1 = { 1, @@ -155,6 +154,7 @@ static int mpc624_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct mpc624_private *devpriv = dev->private; int n, i; unsigned long int data_in, data_out; unsigned char ucPort; @@ -283,6 +283,7 @@ static int mpc624_ai_rinsn(struct comedi_device *dev, static int mpc624_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct mpc624_private *devpriv; struct comedi_subdevice *s; unsigned long iobase; int ret; @@ -297,9 +298,10 @@ static int mpc624_attach(struct comedi_device *dev, struct comedi_devconfig *it) dev->iobase = iobase; dev->board_name = "mpc624"; - /* Private structure initialization */ - if (alloc_private(dev, sizeof(struct skel_private)) < 0) - return -ENOMEM; + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; + devpriv = dev->private; switch (it->options[1]) { case 0: diff --git a/drivers/staging/comedi/drivers/multiq3.c b/drivers/staging/comedi/drivers/multiq3.c index 4625cb4d07c6..f707ee02dcca 100644 --- a/drivers/staging/comedi/drivers/multiq3.c +++ b/drivers/staging/comedi/drivers/multiq3.c @@ -86,7 +86,6 @@ Devices: [Quanser Consulting] MultiQ-3 (multiq3) struct multiq3_private { unsigned int ao_readback[2]; }; -#define devpriv ((struct multiq3_private *)dev->private) static int multiq3_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, @@ -129,6 +128,7 @@ static int multiq3_ao_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct multiq3_private *devpriv = dev->private; int i; int chan = CR_CHAN(insn->chanspec); @@ -142,6 +142,7 @@ static int multiq3_ao_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct multiq3_private *devpriv = dev->private; int i; int chan = CR_CHAN(insn->chanspec); @@ -230,6 +231,7 @@ static void encoder_reset(struct comedi_device *dev) static int multiq3_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct multiq3_private *devpriv; int result = 0; unsigned long iobase; unsigned int irq; @@ -256,9 +258,10 @@ static int multiq3_attach(struct comedi_device *dev, if (result) return result; - result = alloc_private(dev, sizeof(struct multiq3_private)); - if (result < 0) + result = alloc_private(dev, sizeof(*devpriv)); + if (result) return result; + devpriv = dev->private; s = &dev->subdevices[0]; /* ai subdevice */ diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c index 51295f32ee89..4f5624a3a1b0 100644 --- a/drivers/staging/comedi/drivers/ni_6527.c +++ b/drivers/staging/comedi/drivers/ni_6527.c @@ -112,12 +112,11 @@ struct ni6527_private { unsigned int filter_enable; }; -#define devpriv ((struct ni6527_private *)dev->private) - static int ni6527_di_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct ni6527_private *devpriv = dev->private; int chan = CR_CHAN(insn->chanspec); unsigned int interval; @@ -164,6 +163,8 @@ static int ni6527_di_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct ni6527_private *devpriv = dev->private; + data[1] = readb(devpriv->mite->daq_io_addr + Port_Register(0)); data[1] |= readb(devpriv->mite->daq_io_addr + Port_Register(1)) << 8; data[1] |= readb(devpriv->mite->daq_io_addr + Port_Register(2)) << 16; @@ -175,6 +176,8 @@ static int ni6527_do_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct ni6527_private *devpriv = dev->private; + if (data[0]) { s->state &= ~data[0]; s->state |= (data[0] & data[1]); @@ -202,6 +205,7 @@ static int ni6527_do_insn_bits(struct comedi_device *dev, static irqreturn_t ni6527_interrupt(int irq, void *d) { struct comedi_device *dev = d; + struct ni6527_private *devpriv = dev->private; struct comedi_subdevice *s = &dev->subdevices[2]; unsigned int status; @@ -281,6 +285,7 @@ static int ni6527_intr_cmdtest(struct comedi_device *dev, static int ni6527_intr_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { + struct ni6527_private *devpriv = dev->private; /* struct comedi_cmd *cmd = &s->async->cmd; */ writeb(ClrEdge | ClrOverflow, @@ -295,6 +300,8 @@ static int ni6527_intr_cmd(struct comedi_device *dev, static int ni6527_intr_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { + struct ni6527_private *devpriv = dev->private; + writeb(0x00, devpriv->mite->daq_io_addr + Master_Interrupt_Control); return 0; @@ -312,6 +319,8 @@ static int ni6527_intr_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct ni6527_private *devpriv = dev->private; + if (insn->n < 1) return -EINVAL; if (data[0] != INSN_CONFIG_CHANGE_NOTIFY) @@ -351,12 +360,14 @@ ni6527_find_boardinfo(struct pci_dev *pcidev) static int __devinit ni6527_attach_pci(struct comedi_device *dev, struct pci_dev *pcidev) { + struct ni6527_private *devpriv; struct comedi_subdevice *s; int ret; - ret = alloc_private(dev, sizeof(struct ni6527_private)); - if (ret < 0) + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; + devpriv = dev->private; dev->board_ptr = ni6527_find_boardinfo(pcidev); if (!dev->board_ptr) @@ -430,6 +441,8 @@ static int __devinit ni6527_attach_pci(struct comedi_device *dev, static void ni6527_detach(struct comedi_device *dev) { + struct ni6527_private *devpriv = dev->private; + if (devpriv && devpriv->mite && devpriv->mite->daq_io_addr) writeb(0x00, devpriv->mite->daq_io_addr + Master_Interrupt_Control); diff --git a/drivers/staging/comedi/drivers/ni_670x.c b/drivers/staging/comedi/drivers/ni_670x.c index eac6dc047bb0..e7ccf0423b0b 100644 --- a/drivers/staging/comedi/drivers/ni_670x.c +++ b/drivers/staging/comedi/drivers/ni_670x.c @@ -211,9 +211,10 @@ static int __devinit ni_670x_attach_pci(struct comedi_device *dev, int i; ret = alloc_private(dev, sizeof(*devpriv)); - if (ret < 0) + if (ret) return ret; devpriv = dev->private; + dev->board_ptr = ni_670x_find_boardinfo(pcidev); if (!dev->board_ptr) return -ENODEV; diff --git a/drivers/staging/comedi/drivers/ni_at_a2150.c b/drivers/staging/comedi/drivers/ni_at_a2150.c index 83950807b672..34c186b9dce1 100644 --- a/drivers/staging/comedi/drivers/ni_at_a2150.c +++ b/drivers/staging/comedi/drivers/ni_at_a2150.c @@ -169,8 +169,6 @@ struct a2150_private { int config_bits; /* config register bits */ }; -#define devpriv ((struct a2150_private *)dev->private) - static int a2150_cancel(struct comedi_device *dev, struct comedi_subdevice *s); static int a2150_get_timing(struct comedi_device *dev, unsigned int *period, @@ -182,6 +180,8 @@ static int a2150_set_chanlist(struct comedi_device *dev, static void ni_dump_regs(struct comedi_device *dev) { + struct a2150_private *devpriv = dev->private; + printk("config bits 0x%x\n", devpriv->config_bits); printk("irq dma bits 0x%x\n", devpriv->irq_dma_bits); printk("status bits 0x%x\n", inw(dev->iobase + STATUS_REG)); @@ -196,6 +196,7 @@ static irqreturn_t a2150_interrupt(int irq, void *d) int status; unsigned long flags; struct comedi_device *dev = d; + struct a2150_private *devpriv = dev->private; struct comedi_subdevice *s = dev->read_subdev; struct comedi_async *async; struct comedi_cmd *cmd; @@ -300,6 +301,8 @@ static irqreturn_t a2150_interrupt(int irq, void *d) static int a2150_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { + struct a2150_private *devpriv = dev->private; + /* disable dma on card */ devpriv->irq_dma_bits &= ~DMA_INTR_EN_BIT & ~DMA_EN_BIT; outw(devpriv->irq_dma_bits, dev->iobase + IRQ_DMA_CNTRL_REG); @@ -425,6 +428,7 @@ static int a2150_ai_cmdtest(struct comedi_device *dev, static int a2150_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { + struct a2150_private *devpriv = dev->private; struct comedi_async *async = s->async; struct comedi_cmd *cmd = &async->cmd; unsigned long lock_flags; @@ -536,6 +540,7 @@ static int a2150_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) static int a2150_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct a2150_private *devpriv = dev->private; unsigned int i, n; static const int timeout = 100000; static const int filter_delay = 36; @@ -615,6 +620,7 @@ static int a2150_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, static int a2150_get_timing(struct comedi_device *dev, unsigned int *period, int flags) { + struct a2150_private *devpriv = dev->private; int lub, glb, temp; int lub_divisor_shift, lub_index, glb_divisor_shift, glb_index; int i, j; @@ -689,6 +695,8 @@ static int a2150_set_chanlist(struct comedi_device *dev, unsigned int start_channel, unsigned int num_channels) { + struct a2150_private *devpriv = dev->private; + if (start_channel + num_channels > 4) return -1; @@ -727,6 +735,7 @@ static int a2150_probe(struct comedi_device *dev) static int a2150_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct a2150_private *devpriv; struct comedi_subdevice *s; unsigned long iobase = it->options[0]; unsigned int irq = it->options[1]; @@ -749,9 +758,10 @@ static int a2150_attach(struct comedi_device *dev, struct comedi_devconfig *it) } printk("\n"); - /* allocate and initialize dev->private */ - if (alloc_private(dev, sizeof(struct a2150_private)) < 0) - return -ENOMEM; + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; + devpriv = dev->private; if (iobase == 0) { printk(" io base address required\n"); @@ -855,6 +865,8 @@ static int a2150_attach(struct comedi_device *dev, struct comedi_devconfig *it) static void a2150_detach(struct comedi_device *dev) { + struct a2150_private *devpriv = dev->private; + if (dev->iobase) { outw(APD_BIT | DPD_BIT, dev->iobase + CONFIG_REG); release_region(dev->iobase, A2150_SIZE); diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c index 93938cec93e7..66071600de02 100644 --- a/drivers/staging/comedi/drivers/ni_at_ao.c +++ b/drivers/staging/comedi/drivers/ni_at_ao.c @@ -167,10 +167,10 @@ struct atao_private { unsigned int ao_readback[10]; }; -#define devpriv ((struct atao_private *)dev->private) - static void atao_reset(struct comedi_device *dev) { + struct atao_private *devpriv = dev->private; + /* This is the reset sequence described in the manual */ devpriv->cfg1 = 0; @@ -202,6 +202,7 @@ static void atao_reset(struct comedi_device *dev) static int atao_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct atao_private *devpriv = dev->private; int i; int chan = CR_CHAN(insn->chanspec); short bits; @@ -226,6 +227,7 @@ static int atao_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, static int atao_ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct atao_private *devpriv = dev->private; int i; int chan = CR_CHAN(insn->chanspec); @@ -254,6 +256,7 @@ static int atao_dio_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct atao_private *devpriv = dev->private; int chan = CR_CHAN(insn->chanspec); unsigned int mask, bit; @@ -309,6 +312,7 @@ static int atao_calib_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct atao_private *devpriv = dev->private; unsigned int bitstring, bit; unsigned int chan = CR_CHAN(insn->chanspec); @@ -331,6 +335,7 @@ static int atao_calib_insn_write(struct comedi_device *dev, static int atao_attach(struct comedi_device *dev, struct comedi_devconfig *it) { const struct atao_board *board = comedi_board(dev); + struct atao_private *devpriv; struct comedi_subdevice *s; unsigned long iobase; int ao_unipolar; @@ -351,8 +356,10 @@ static int atao_attach(struct comedi_device *dev, struct comedi_devconfig *it) dev->board_name = board->name; - if (alloc_private(dev, sizeof(struct atao_private)) < 0) - return -ENOMEM; + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; + devpriv = dev->private; ret = comedi_alloc_subdevices(dev, 4); if (ret) diff --git a/drivers/staging/comedi/drivers/ni_atmio16d.c b/drivers/staging/comedi/drivers/ni_atmio16d.c index e91a620f9db3..93969865b351 100644 --- a/drivers/staging/comedi/drivers/ni_atmio16d.c +++ b/drivers/staging/comedi/drivers/ni_atmio16d.c @@ -102,7 +102,6 @@ Devices: [National Instruments] AT-MIO-16 (atmio16), AT-MIO-16D (atmio16d) #define CLOCK_100_HZ 0x8F25 /* Other miscellaneous defines */ #define ATMIO16D_SIZE 32 /* bus address range */ -#define devpriv ((struct atmio16d_private *)dev->private) #define ATMIO16D_TIMEOUT 10 struct atmio16_board_t { @@ -202,6 +201,7 @@ static void reset_counters(struct comedi_device *dev) static void reset_atmio16d(struct comedi_device *dev) { + struct atmio16d_private *devpriv = dev->private; int i; /* now we need to initialize the board */ @@ -327,6 +327,7 @@ static int atmio16d_ai_cmdtest(struct comedi_device *dev, static int atmio16d_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { + struct atmio16d_private *devpriv = dev->private; struct comedi_cmd *cmd = &s->async->cmd; unsigned int timer, base_clock; unsigned int sample_count, tmp, chan, gain; @@ -486,6 +487,7 @@ static int atmio16d_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct atmio16d_private *devpriv = dev->private; int i, t; int chan; int gain; @@ -539,6 +541,7 @@ static int atmio16d_ao_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct atmio16d_private *devpriv = dev->private; int i; for (i = 0; i < insn->n; i++) @@ -550,6 +553,7 @@ static int atmio16d_ao_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct atmio16d_private *devpriv = dev->private; int i; int chan; int d; @@ -596,6 +600,7 @@ static int atmio16d_dio_insn_config(struct comedi_device *dev, struct comedi_insn *insn, unsigned int *data) { + struct atmio16d_private *devpriv = dev->private; int i; int mask; @@ -651,6 +656,7 @@ static int atmio16d_attach(struct comedi_device *dev, struct comedi_devconfig *it) { const struct atmio16_board_t *board = comedi_board(dev); + struct atmio16d_private *devpriv; unsigned int irq; unsigned long iobase; int ret; @@ -672,9 +678,10 @@ static int atmio16d_attach(struct comedi_device *dev, if (ret) return ret; - ret = alloc_private(dev, sizeof(struct atmio16d_private)); - if (ret < 0) + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; + devpriv = dev->private; /* reset the atmio16d hardware */ reset_atmio16d(dev); diff --git a/drivers/staging/comedi/drivers/ni_daq_dio24.c b/drivers/staging/comedi/drivers/ni_daq_dio24.c index 0ca222bbcbe6..1984c5fa3afe 100644 --- a/drivers/staging/comedi/drivers/ni_daq_dio24.c +++ b/drivers/staging/comedi/drivers/ni_daq_dio24.c @@ -96,8 +96,6 @@ struct dio24_private { int data; /* number of data points left to be taken */ }; -#define devpriv ((struct dio24_private *)dev->private) - static struct comedi_driver driver_dio24 = { .driver_name = "ni_daq_dio24", .module = THIS_MODULE, @@ -110,6 +108,7 @@ static struct comedi_driver driver_dio24 = { static int dio24_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct dio24_private *devpriv; struct comedi_subdevice *s; unsigned long iobase = 0; #ifdef incomplete @@ -118,9 +117,10 @@ static int dio24_attach(struct comedi_device *dev, struct comedi_devconfig *it) struct pcmcia_device *link; int ret; - /* allocate and initialize dev->private */ - if (alloc_private(dev, sizeof(struct dio24_private)) < 0) - return -ENOMEM; + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; + devpriv = dev->private; /* get base address, irq etc. based on bustype */ switch (thisboard->bustype) { diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c index 28b91a6c3789..d3b386e51bfb 100644 --- a/drivers/staging/comedi/drivers/ni_labpc.c +++ b/drivers/staging/comedi/drivers/ni_labpc.c @@ -487,8 +487,6 @@ static const int dma_buffer_size = 0xff00; /* 2 bytes per sample */ static const int sample_size = 2; -#define devpriv ((struct labpc_private *)dev->private) - static inline int labpc_counter_load(struct comedi_device *dev, unsigned long base_address, unsigned int counter_number, @@ -504,6 +502,7 @@ static inline int labpc_counter_load(struct comedi_device *dev, int labpc_common_attach(struct comedi_device *dev, unsigned long iobase, unsigned int irq, unsigned int dma_chan) { + struct labpc_private *devpriv = dev->private; struct comedi_subdevice *s; int i; unsigned long isr_flags; @@ -700,15 +699,19 @@ labpc_pci_find_boardinfo(struct pci_dev *pcidev) static int __devinit labpc_attach_pci(struct comedi_device *dev, struct pci_dev *pcidev) { + struct labpc_private *devpriv; unsigned long iobase; unsigned int irq; int ret; if (!IS_ENABLED(CONFIG_COMEDI_PCI_DRIVERS)) return -ENODEV; - ret = alloc_private(dev, sizeof(struct labpc_private)); - if (ret < 0) + + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; + devpriv = dev->private; + dev->board_ptr = labpc_pci_find_boardinfo(pcidev); if (!dev->board_ptr) return -ENODEV; @@ -725,13 +728,16 @@ static int __devinit labpc_attach_pci(struct comedi_device *dev, static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct labpc_private *devpriv; unsigned long iobase = 0; unsigned int irq = 0; unsigned int dma_chan = 0; + int ret; - /* allocate and initialize dev->private */ - if (alloc_private(dev, sizeof(struct labpc_private)) < 0) - return -ENOMEM; + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; + devpriv = dev->private; /* get base address, irq etc. based on bustype */ switch (thisboard->bustype) { @@ -770,6 +776,7 @@ static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it) void labpc_common_detach(struct comedi_device *dev) { + struct labpc_private *devpriv = dev->private; struct comedi_subdevice *s; if (dev->subdevices) { @@ -797,6 +804,8 @@ EXPORT_SYMBOL_GPL(labpc_common_detach); static void labpc_clear_adc_fifo(const struct comedi_device *dev) { + struct labpc_private *devpriv = dev->private; + devpriv->write_byte(0x1, dev->iobase + ADC_CLEAR_REG); devpriv->read_byte(dev->iobase + ADC_FIFO_REG); devpriv->read_byte(dev->iobase + ADC_FIFO_REG); @@ -804,6 +813,7 @@ static void labpc_clear_adc_fifo(const struct comedi_device *dev) static int labpc_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { + struct labpc_private *devpriv = dev->private; unsigned long flags; spin_lock_irqsave(&dev->spinlock, flags); @@ -1096,6 +1106,7 @@ static int labpc_ai_cmdtest(struct comedi_device *dev, static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { + struct labpc_private *devpriv = dev->private; int channel, range, aref; #ifdef CONFIG_ISA_DMA_API unsigned long irq_flags; @@ -1363,6 +1374,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) static irqreturn_t labpc_interrupt(int irq, void *d) { struct comedi_device *dev = d; + struct labpc_private *devpriv = dev->private; struct comedi_subdevice *s = dev->read_subdev; struct comedi_async *async; struct comedi_cmd *cmd; @@ -1451,6 +1463,7 @@ static irqreturn_t labpc_interrupt(int irq, void *d) /* read all available samples from ai fifo */ static int labpc_drain_fifo(struct comedi_device *dev) { + struct labpc_private *devpriv = dev->private; unsigned int lsb, msb; short data; struct comedi_async *async = dev->read_subdev->async; @@ -1486,6 +1499,7 @@ static int labpc_drain_fifo(struct comedi_device *dev) #ifdef CONFIG_ISA_DMA_API static void labpc_drain_dma(struct comedi_device *dev) { + struct labpc_private *devpriv = dev->private; struct comedi_subdevice *s = dev->read_subdev; struct comedi_async *async = s->async; int status; @@ -1539,6 +1553,8 @@ static void labpc_drain_dma(struct comedi_device *dev) static void handle_isa_dma(struct comedi_device *dev) { + struct labpc_private *devpriv = dev->private; + labpc_drain_dma(dev); enable_dma(devpriv->dma_chan); @@ -1553,6 +1569,8 @@ static void handle_isa_dma(struct comedi_device *dev) static void labpc_drain_dregs(struct comedi_device *dev) { #ifdef CONFIG_ISA_DMA_API + struct labpc_private *devpriv = dev->private; + if (devpriv->current_transfer == isa_dma_transfer) labpc_drain_dma(dev); #endif @@ -1563,6 +1581,7 @@ static void labpc_drain_dregs(struct comedi_device *dev) static int labpc_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct labpc_private *devpriv = dev->private; int i, n; int chan, range; int lsb, msb; @@ -1652,6 +1671,7 @@ static int labpc_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, static int labpc_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct labpc_private *devpriv = dev->private; int channel, range; unsigned long flags; int lsb, msb; @@ -1693,6 +1713,8 @@ static int labpc_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, static int labpc_ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct labpc_private *devpriv = dev->private; + data[0] = devpriv->ao_value[CR_CHAN(insn->chanspec)]; return 1; @@ -1702,6 +1724,8 @@ static int labpc_calib_read_insn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct labpc_private *devpriv = dev->private; + data[0] = devpriv->caldac[CR_CHAN(insn->chanspec)]; return 1; @@ -1721,6 +1745,8 @@ static int labpc_eeprom_read_insn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct labpc_private *devpriv = dev->private; + data[0] = devpriv->eeprom_data[CR_CHAN(insn->chanspec)]; return 1; @@ -1777,6 +1803,7 @@ static unsigned int labpc_suggest_transfer_size(const struct comedi_cmd *cmd) static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd, enum scan_mode mode) { + struct labpc_private *devpriv = dev->private; /* max value for 16 bit counter in mode 2 */ const int max_counter_value = 0x10000; /* min value for 16 bit counter in mode 2 */ @@ -1883,6 +1910,7 @@ static int labpc_dio_mem_callback(int dir, int port, int data, static void labpc_serial_out(struct comedi_device *dev, unsigned int value, unsigned int value_width) { + struct labpc_private *devpriv = dev->private; int i; for (i = 1; i <= value_width; i++) { @@ -1907,6 +1935,7 @@ static void labpc_serial_out(struct comedi_device *dev, unsigned int value, /* lowlevel read from eeprom */ static unsigned int labpc_serial_in(struct comedi_device *dev) { + struct labpc_private *devpriv = dev->private; unsigned int value = 0; int i; const int value_width = 8; /* number of bits wide values are */ @@ -1936,6 +1965,7 @@ static unsigned int labpc_serial_in(struct comedi_device *dev) static unsigned int labpc_eeprom_read(struct comedi_device *dev, unsigned int address) { + struct labpc_private *devpriv = dev->private; unsigned int value; /* bits to tell eeprom to expect a read */ const int read_instruction = 0x3; @@ -1968,6 +1998,7 @@ static unsigned int labpc_eeprom_read(struct comedi_device *dev, static int labpc_eeprom_write(struct comedi_device *dev, unsigned int address, unsigned int value) { + struct labpc_private *devpriv = dev->private; const int write_enable_instruction = 0x6; const int write_instruction = 0x2; const int write_length = 8; /* 8 bit write lengths to eeprom */ @@ -2025,6 +2056,7 @@ static int labpc_eeprom_write(struct comedi_device *dev, static unsigned int labpc_eeprom_read_status(struct comedi_device *dev) { + struct labpc_private *devpriv = dev->private; unsigned int value; const int read_status_instruction = 0x5; const int write_length = 8; /* 8 bit write lengths to eeprom */ @@ -2054,6 +2086,8 @@ static unsigned int labpc_eeprom_read_status(struct comedi_device *dev) static void write_caldac(struct comedi_device *dev, unsigned int channel, unsigned int value) { + struct labpc_private *devpriv = dev->private; + if (value == devpriv->caldac[channel]) return; devpriv->caldac[channel] = value; diff --git a/drivers/staging/comedi/drivers/ni_labpc_cs.c b/drivers/staging/comedi/drivers/ni_labpc_cs.c index eb0417eb6d7d..791a66ff65a0 100644 --- a/drivers/staging/comedi/drivers/ni_labpc_cs.c +++ b/drivers/staging/comedi/drivers/ni_labpc_cs.c @@ -127,13 +127,16 @@ static struct comedi_driver driver_labpc_cs = { static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct labpc_private *devpriv; unsigned long iobase = 0; unsigned int irq = 0; struct pcmcia_device *link; + int ret; - /* allocate and initialize dev->private */ - if (alloc_private(dev, sizeof(struct labpc_private)) < 0) - return -ENOMEM; + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; + devpriv = dev->private; /* get base address, irq etc. based on bustype */ switch (thisboard->bustype) { diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c index bc9313ec985c..233a2d350e84 100644 --- a/drivers/staging/comedi/drivers/ni_pcidio.c +++ b/drivers/staging/comedi/drivers/ni_pcidio.c @@ -310,7 +310,6 @@ struct nidio96_private { struct mite_dma_descriptor_ring *di_mite_ring; spinlock_t mite_channel_lock; }; -#define devpriv ((struct nidio96_private *)dev->private) static int ni_pcidio_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, @@ -332,6 +331,7 @@ static void ni_pcidio_print_status(unsigned int status); static int ni_pcidio_request_di_mite_channel(struct comedi_device *dev) { + struct nidio96_private *devpriv = dev->private; unsigned long flags; spin_lock_irqsave(&devpriv->mite_channel_lock, flags); @@ -355,6 +355,7 @@ static int ni_pcidio_request_di_mite_channel(struct comedi_device *dev) static void ni_pcidio_release_di_mite_channel(struct comedi_device *dev) { + struct nidio96_private *devpriv = dev->private; unsigned long flags; spin_lock_irqsave(&devpriv->mite_channel_lock, flags); @@ -384,6 +385,7 @@ static void ni_pcidio_event(struct comedi_device *dev, static int ni_pcidio_poll(struct comedi_device *dev, struct comedi_subdevice *s) { + struct nidio96_private *devpriv = dev->private; unsigned long irq_flags; int count; @@ -400,6 +402,7 @@ static int ni_pcidio_poll(struct comedi_device *dev, struct comedi_subdevice *s) static irqreturn_t nidio_interrupt(int irq, void *d) { struct comedi_device *dev = d; + struct nidio96_private *devpriv = dev->private; struct comedi_subdevice *s = &dev->subdevices[0]; struct comedi_async *async = s->async; struct mite_struct *mite = devpriv->mite; @@ -609,6 +612,7 @@ static void ni_pcidio_print_status(unsigned int flags) #ifdef unused static void debug_int(struct comedi_device *dev) { + struct nidio96_private *devpriv = dev->private; int a, b; static int n_int; struct timeval tv; @@ -640,6 +644,8 @@ static int ni_pcidio_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct nidio96_private *devpriv = dev->private; + if (insn->n != 1) return -EINVAL; switch (data[0]) { @@ -668,6 +674,8 @@ static int ni_pcidio_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct nidio96_private *devpriv = dev->private; + if (data[0]) { s->state &= ~data[0]; s->state |= (data[0] & data[1]); @@ -793,6 +801,7 @@ static int ni_pcidio_ns_to_timer(int *nanosec, int round_mode) static int ni_pcidio_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { + struct nidio96_private *devpriv = dev->private; struct comedi_cmd *cmd = &s->async->cmd; /* XXX configure ports for input */ @@ -910,6 +919,7 @@ static int ni_pcidio_cmd(struct comedi_device *dev, struct comedi_subdevice *s) static int setup_mite_dma(struct comedi_device *dev, struct comedi_subdevice *s) { + struct nidio96_private *devpriv = dev->private; int retval; unsigned long flags; @@ -934,6 +944,8 @@ static int setup_mite_dma(struct comedi_device *dev, struct comedi_subdevice *s) static int ni_pcidio_inttrig(struct comedi_device *dev, struct comedi_subdevice *s, unsigned int trignum) { + struct nidio96_private *devpriv = dev->private; + if (trignum != 0) return -EINVAL; @@ -946,6 +958,8 @@ static int ni_pcidio_inttrig(struct comedi_device *dev, static int ni_pcidio_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { + struct nidio96_private *devpriv = dev->private; + writeb(0x00, devpriv->mite->daq_io_addr + Master_DMA_And_Interrupt_Control); ni_pcidio_release_di_mite_channel(dev); @@ -956,6 +970,7 @@ static int ni_pcidio_cancel(struct comedi_device *dev, static int ni_pcidio_change(struct comedi_device *dev, struct comedi_subdevice *s, unsigned long new_size) { + struct nidio96_private *devpriv = dev->private; int ret; ret = mite_buf_change(devpriv->di_mite_ring, s->async); @@ -970,6 +985,7 @@ static int ni_pcidio_change(struct comedi_device *dev, static int pci_6534_load_fpga(struct comedi_device *dev, int fpga_index, const u8 *data, size_t data_len) { + struct nidio96_private *devpriv = dev->private; static const int timeout = 1000; int i; size_t j; @@ -1033,8 +1049,10 @@ static int pci_6534_reset_fpga(struct comedi_device *dev, int fpga_index) static int pci_6534_reset_fpgas(struct comedi_device *dev) { + struct nidio96_private *devpriv = dev->private; int ret; int i; + writew(0x0, devpriv->mite->daq_io_addr + Firmware_Control_Register); for (i = 0; i < 3; ++i) { ret = pci_6534_reset_fpga(dev, i); @@ -1047,6 +1065,8 @@ static int pci_6534_reset_fpgas(struct comedi_device *dev) static void pci_6534_init_main_fpga(struct comedi_device *dev) { + struct nidio96_private *devpriv = dev->private; + writel(0, devpriv->mite->daq_io_addr + FPGA_Control1_Register); writel(0, devpriv->mite->daq_io_addr + FPGA_Control2_Register); writel(0, devpriv->mite->daq_io_addr + FPGA_SCALS_Counter_Register); @@ -1057,6 +1077,7 @@ static void pci_6534_init_main_fpga(struct comedi_device *dev) static int pci_6534_upload_firmware(struct comedi_device *dev) { + struct nidio96_private *devpriv = dev->private; int ret; const struct firmware *fw; static const char *const fw_file[3] = { @@ -1102,13 +1123,16 @@ nidio_find_boardinfo(struct pci_dev *pcidev) static int __devinit nidio_attach_pci(struct comedi_device *dev, struct pci_dev *pcidev) { + struct nidio96_private *devpriv; struct comedi_subdevice *s; int ret; unsigned int irq; - ret = alloc_private(dev, sizeof(struct nidio96_private)); - if (ret < 0) + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; + devpriv = dev->private; + spin_lock_init(&devpriv->mite_channel_lock); dev->board_ptr = nidio_find_boardinfo(pcidev); @@ -1184,6 +1208,8 @@ static int __devinit nidio_attach_pci(struct comedi_device *dev, static void nidio_detach(struct comedi_device *dev) { + struct nidio96_private *devpriv = dev->private; + if (dev->irq) free_irq(dev->irq, dev); if (devpriv) { diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c index 89305a14eb5c..33bda31392da 100644 --- a/drivers/staging/comedi/drivers/pcl711.c +++ b/drivers/staging/comedi/drivers/pcl711.c @@ -161,14 +161,13 @@ struct pcl711_private { unsigned int divisor2; }; -#define devpriv ((struct pcl711_private *)dev->private) - static irqreturn_t pcl711_interrupt(int irq, void *d) { int lo, hi; int data; struct comedi_device *dev = d; const struct pcl711_board *board = comedi_board(dev); + struct pcl711_private *devpriv = dev->private; struct comedi_subdevice *s = &dev->subdevices[0]; if (!dev->attached) { @@ -264,6 +263,7 @@ ok: static int pcl711_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { + struct pcl711_private *devpriv = dev->private; int tmp; int err = 0; @@ -349,6 +349,7 @@ static int pcl711_ai_cmdtest(struct comedi_device *dev, static int pcl711_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { + struct pcl711_private *devpriv = dev->private; int timer1, timer2; struct comedi_cmd *cmd = &s->async->cmd; @@ -398,6 +399,7 @@ static int pcl711_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) static int pcl711_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct pcl711_private *devpriv = dev->private; int n; int chan = CR_CHAN(insn->chanspec); @@ -417,6 +419,7 @@ static int pcl711_ao_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct pcl711_private *devpriv = dev->private; int n; int chan = CR_CHAN(insn->chanspec); @@ -460,6 +463,7 @@ static int pcl711_do_insn_bits(struct comedi_device *dev, static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it) { const struct pcl711_board *board = comedi_board(dev); + struct pcl711_private *devpriv; int ret; unsigned long iobase; unsigned int irq; @@ -499,9 +503,10 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it) if (ret) return ret; - ret = alloc_private(dev, sizeof(struct pcl711_private)); - if (ret < 0) + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; + devpriv = dev->private; s = &dev->subdevices[0]; /* AI subdevice */ diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c index 07e72de982ac..22f907a07041 100644 --- a/drivers/staging/comedi/drivers/pcl726.c +++ b/drivers/staging/comedi/drivers/pcl726.c @@ -152,11 +152,10 @@ struct pcl726_private { unsigned int ao_readback[12]; }; -#define devpriv ((struct pcl726_private *)dev->private) - static int pcl726_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct pcl726_private *devpriv = dev->private; int hi, lo; int n; int chan = CR_CHAN(insn->chanspec); @@ -183,6 +182,7 @@ static int pcl726_ao_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct pcl726_private *devpriv = dev->private; int chan = CR_CHAN(insn->chanspec); int n; @@ -226,6 +226,7 @@ static int pcl726_do_insn_bits(struct comedi_device *dev, static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it) { const struct pcl726_board *board = comedi_board(dev); + struct pcl726_private *devpriv; struct comedi_subdevice *s; unsigned long iobase; unsigned int iorange; @@ -247,9 +248,10 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it) dev->board_name = board->name; - ret = alloc_private(dev, sizeof(struct pcl726_private)); - if (ret < 0) - return -ENOMEM; + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; + devpriv = dev->private; for (i = 0; i < 12; i++) { devpriv->bipolar[i] = 0; diff --git a/drivers/staging/comedi/drivers/pcl812.c b/drivers/staging/comedi/drivers/pcl812.c index 3cf55ff93083..0d825915d46d 100644 --- a/drivers/staging/comedi/drivers/pcl812.c +++ b/drivers/staging/comedi/drivers/pcl812.c @@ -369,8 +369,6 @@ struct pcl812_private { unsigned int ao_readback[2]; /* data for AO readback */ }; -#define devpriv ((struct pcl812_private *)dev->private) - /* ============================================================================== */ @@ -388,6 +386,7 @@ static int pcl812_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct pcl812_private *devpriv = dev->private; int n; int timeout, hi; @@ -465,6 +464,7 @@ static int pcl812_ao_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct pcl812_private *devpriv = dev->private; int chan = CR_CHAN(insn->chanspec); int i; @@ -486,6 +486,7 @@ static int pcl812_ao_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct pcl812_private *devpriv = dev->private; int chan = CR_CHAN(insn->chanspec); int i; @@ -533,6 +534,7 @@ static int pcl812_ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { const struct pcl812_board *board = comedi_board(dev); + struct pcl812_private *devpriv = dev->private; int err = 0; unsigned int flags; int tmp, divisor1, divisor2; @@ -639,6 +641,7 @@ static int pcl812_ai_cmdtest(struct comedi_device *dev, static int pcl812_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { const struct pcl812_board *board = comedi_board(dev); + struct pcl812_private *devpriv = dev->private; unsigned int divisor1 = 0, divisor2 = 0, i, dma_flags, bytes; struct comedi_cmd *cmd = &s->async->cmd; @@ -789,6 +792,7 @@ static irqreturn_t interrupt_pcl812_ai_int(int irq, void *d) char err = 1; unsigned int mask, timeout; struct comedi_device *dev = d; + struct pcl812_private *devpriv = dev->private; struct comedi_subdevice *s = &dev->subdevices[0]; unsigned int next_chan; @@ -862,6 +866,7 @@ static void transfer_from_dma_buf(struct comedi_device *dev, struct comedi_subdevice *s, short *ptr, unsigned int bufptr, unsigned int len) { + struct pcl812_private *devpriv = dev->private; unsigned int i; s->async->events = 0; @@ -892,6 +897,7 @@ static void transfer_from_dma_buf(struct comedi_device *dev, static irqreturn_t interrupt_pcl812_ai_dma(int irq, void *d) { struct comedi_device *dev = d; + struct pcl812_private *devpriv = dev->private; struct comedi_subdevice *s = &dev->subdevices[0]; unsigned long dma_flags; int len, bufptr; @@ -938,6 +944,7 @@ static irqreturn_t interrupt_pcl812_ai_dma(int irq, void *d) static irqreturn_t interrupt_pcl812(int irq, void *d) { struct comedi_device *dev = d; + struct pcl812_private *devpriv = dev->private; if (!dev->attached) { comedi_error(dev, "spurious interrupt"); @@ -954,6 +961,7 @@ static irqreturn_t interrupt_pcl812(int irq, void *d) */ static int pcl812_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s) { + struct pcl812_private *devpriv = dev->private; unsigned long flags; unsigned int top1, top2, i; @@ -1002,6 +1010,7 @@ static void setup_range_channel(struct comedi_device *dev, struct comedi_subdevice *s, unsigned int rangechan, char wait) { + struct pcl812_private *devpriv = dev->private; unsigned char chan_reg = CR_CHAN(rangechan); /* normal board */ /* gain index */ unsigned char gain_reg = CR_RANGE(rangechan) + @@ -1063,8 +1072,9 @@ static void start_pacer(struct comedi_device *dev, int mode, static void free_resources(struct comedi_device *dev) { const struct pcl812_board *board = comedi_board(dev); + struct pcl812_private *devpriv = dev->private; - if (dev->private) { + if (devpriv) { if (devpriv->dmabuf[0]) free_pages(devpriv->dmabuf[0], devpriv->dmapages[0]); if (devpriv->dmabuf[1]) @@ -1084,6 +1094,8 @@ static void free_resources(struct comedi_device *dev) static int pcl812_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { + struct pcl812_private *devpriv = dev->private; + if (devpriv->ai_dma) disable_dma(devpriv->dma); outb(0, dev->iobase + PCL812_CLRINT); /* clear INT request */ @@ -1100,6 +1112,7 @@ static int pcl812_ai_cancel(struct comedi_device *dev, static void pcl812_reset(struct comedi_device *dev) { const struct pcl812_board *board = comedi_board(dev); + struct pcl812_private *devpriv = dev->private; outb(0, dev->iobase + PCL812_MUX); outb(0 + devpriv->range_correction, dev->iobase + PCL812_GAIN); @@ -1135,6 +1148,7 @@ static void pcl812_reset(struct comedi_device *dev) static int pcl812_attach(struct comedi_device *dev, struct comedi_devconfig *it) { const struct pcl812_board *board = comedi_board(dev); + struct pcl812_private *devpriv; int ret, subdev; unsigned long iobase; unsigned int irq; @@ -1153,11 +1167,12 @@ static int pcl812_attach(struct comedi_device *dev, struct comedi_devconfig *it) } dev->iobase = iobase; - ret = alloc_private(dev, sizeof(struct pcl812_private)); - if (ret < 0) { + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) { free_resources(dev); - return ret; /* Can't alloc mem */ + return ret; } + devpriv = dev->private; dev->board_name = board->name; diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c index 0822de058e4d..4cdb3c915f5f 100644 --- a/drivers/staging/comedi/drivers/pcl816.c +++ b/drivers/staging/comedi/drivers/pcl816.c @@ -126,8 +126,6 @@ struct pcl816_board { int i8254_osc_base; /* 1/frequency of on board oscilator in ns */ }; -#define devpriv ((struct pcl816_private *)dev->private) - #ifdef unused static int RTC_lock; /* RTC lock */ static int RTC_timer_lock; /* RTC int lock */ @@ -259,6 +257,7 @@ static int pcl816_ai_insn_read(struct comedi_device *dev, static irqreturn_t interrupt_pcl816_ai_mode13_int(int irq, void *d) { struct comedi_device *dev = d; + struct pcl816_private *devpriv = dev->private; struct comedi_subdevice *s = &dev->subdevices[0]; int low, hi; int timeout = 50; /* wait max 50us */ @@ -315,6 +314,7 @@ static void transfer_from_dma_buf(struct comedi_device *dev, struct comedi_subdevice *s, short *ptr, unsigned int bufptr, unsigned int len) { + struct pcl816_private *devpriv = dev->private; int i; s->async->events = 0; @@ -350,6 +350,7 @@ static void transfer_from_dma_buf(struct comedi_device *dev, static irqreturn_t interrupt_pcl816_ai_mode13_dma(int irq, void *d) { struct comedi_device *dev = d; + struct pcl816_private *devpriv = dev->private; struct comedi_subdevice *s = &dev->subdevices[0]; int len, bufptr, this_dma_buf; unsigned long dma_flags; @@ -398,6 +399,8 @@ static irqreturn_t interrupt_pcl816_ai_mode13_dma(int irq, void *d) static irqreturn_t interrupt_pcl816(int irq, void *d) { struct comedi_device *dev = d; + struct pcl816_private *devpriv = dev->private; + DPRINTK("<I>"); if (!dev->attached) { @@ -554,6 +557,7 @@ static int pcl816_ai_cmdtest(struct comedi_device *dev, static int pcl816_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { const struct pcl816_board *board = comedi_board(dev); + struct pcl816_private *devpriv = dev->private; unsigned int divisor1 = 0, divisor2 = 0, dma_flags, bytes, dmairq; struct comedi_cmd *cmd = &s->async->cmd; unsigned int seglen; @@ -682,6 +686,7 @@ static int pcl816_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) static int pcl816_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s) { + struct pcl816_private *devpriv = dev->private; unsigned long flags; unsigned int top1, top2, i; @@ -727,6 +732,8 @@ static int pcl816_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s) static int pcl816_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { + struct pcl816_private *devpriv = dev->private; + /* DEBUG(printk("pcl816_ai_cancel()\n");) */ if (devpriv->irq_blocked > 0) { @@ -932,6 +939,7 @@ setup_channel_list(struct comedi_device *dev, struct comedi_subdevice *s, unsigned int *chanlist, unsigned int seglen) { + struct pcl816_private *devpriv = dev->private; unsigned int i; devpriv->ai_act_chanlist_len = seglen; @@ -991,6 +999,7 @@ static int set_rtc_irq_bit(unsigned char bit) static int pcl816_attach(struct comedi_device *dev, struct comedi_devconfig *it) { const struct pcl816_board *board = comedi_board(dev); + struct pcl816_private *devpriv; int ret; unsigned long iobase; unsigned int irq, dma; @@ -1015,9 +1024,10 @@ static int pcl816_attach(struct comedi_device *dev, struct comedi_devconfig *it) return -EIO; } - ret = alloc_private(dev, sizeof(struct pcl816_private)); - if (ret < 0) - return ret; /* Can't alloc mem */ + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; + devpriv = dev->private; dev->board_name = board->name; @@ -1216,6 +1226,7 @@ case COMEDI_SUBD_DO: static void pcl816_detach(struct comedi_device *dev) { const struct pcl816_board *board = comedi_board(dev); + struct pcl816_private *devpriv = dev->private; if (dev->private) { pcl816_ai_cancel(dev, devpriv->sub_ai); diff --git a/drivers/staging/comedi/drivers/pcl818.c b/drivers/staging/comedi/drivers/pcl818.c index d4b0859d81f2..9dcddea3f61a 100644 --- a/drivers/staging/comedi/drivers/pcl818.c +++ b/drivers/staging/comedi/drivers/pcl818.c @@ -326,8 +326,6 @@ static const unsigned int muxonechan[] = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff }; -#define devpriv ((struct pcl818_private *)dev->private) - /* ============================================================================== */ @@ -406,6 +404,7 @@ static int pcl818_ao_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct pcl818_private *devpriv = dev->private; int n; int chan = CR_CHAN(insn->chanspec); @@ -419,6 +418,7 @@ static int pcl818_ao_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct pcl818_private *devpriv = dev->private; int n; int chan = CR_CHAN(insn->chanspec); @@ -478,6 +478,7 @@ static int pcl818_do_insn_bits(struct comedi_device *dev, static irqreturn_t interrupt_pcl818_ai_mode13_int(int irq, void *d) { struct comedi_device *dev = d; + struct pcl818_private *devpriv = dev->private; struct comedi_subdevice *s = &dev->subdevices[0]; int low; int timeout = 50; /* wait max 50us */ @@ -537,6 +538,7 @@ conv_finish: static irqreturn_t interrupt_pcl818_ai_mode13_dma(int irq, void *d) { struct comedi_device *dev = d; + struct pcl818_private *devpriv = dev->private; struct comedi_subdevice *s = &dev->subdevices[0]; int i, len, bufptr; unsigned long flags; @@ -616,6 +618,7 @@ static irqreturn_t interrupt_pcl818_ai_mode13_dma(int irq, void *d) static irqreturn_t interrupt_pcl818_ai_mode13_dma_rtc(int irq, void *d) { struct comedi_device *dev = d; + struct pcl818_private *devpriv = dev->private; struct comedi_subdevice *s = &dev->subdevices[0]; unsigned long tmp; unsigned int top1, top2, i, bufptr; @@ -721,6 +724,7 @@ static irqreturn_t interrupt_pcl818_ai_mode13_dma_rtc(int irq, void *d) static irqreturn_t interrupt_pcl818_ai_mode13_fifo(int irq, void *d) { struct comedi_device *dev = d; + struct pcl818_private *devpriv = dev->private; struct comedi_subdevice *s = &dev->subdevices[0]; int i, len, lo; @@ -795,6 +799,7 @@ static irqreturn_t interrupt_pcl818_ai_mode13_fifo(int irq, void *d) static irqreturn_t interrupt_pcl818(int irq, void *d) { struct comedi_device *dev = d; + struct pcl818_private *devpriv = dev->private; if (!dev->attached) { comedi_error(dev, "premature interrupt"); @@ -861,6 +866,7 @@ static irqreturn_t interrupt_pcl818(int irq, void *d) static void pcl818_ai_mode13dma_int(int mode, struct comedi_device *dev, struct comedi_subdevice *s) { + struct pcl818_private *devpriv = dev->private; unsigned int flags; unsigned int bytes; @@ -902,6 +908,7 @@ static void pcl818_ai_mode13dma_int(int mode, struct comedi_device *dev, static void pcl818_ai_mode13dma_rtc(int mode, struct comedi_device *dev, struct comedi_subdevice *s) { + struct pcl818_private *devpriv = dev->private; unsigned int flags; short *pole; @@ -943,6 +950,7 @@ static void pcl818_ai_mode13dma_rtc(int mode, struct comedi_device *dev, static int pcl818_ai_cmd_mode(int mode, struct comedi_device *dev, struct comedi_subdevice *s) { + struct pcl818_private *devpriv = dev->private; struct comedi_cmd *cmd = &s->async->cmd; int divisor1 = 0, divisor2 = 0; unsigned int seglen; @@ -1063,6 +1071,7 @@ static int pcl818_ai_cmd_mode(int mode, struct comedi_device *dev, static int pcl818_ao_mode13(int mode, struct comedi_device *dev, struct comedi_subdevice *s, comedi_trig * it) { + struct pcl818_private *devpriv = dev->private; int divisor1 = 0, divisor2 = 0; if (!dev->irq) { @@ -1222,6 +1231,7 @@ static void setup_channel_list(struct comedi_device *dev, unsigned int *chanlist, unsigned int n_chan, unsigned int seglen) { + struct pcl818_private *devpriv = dev->private; int i; devpriv->act_chanlist_len = seglen; @@ -1259,6 +1269,7 @@ static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { const struct pcl818_board *board = comedi_board(dev); + struct pcl818_private *devpriv = dev->private; int err = 0; int tmp, divisor1 = 0, divisor2 = 0; @@ -1358,6 +1369,7 @@ static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, */ static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { + struct pcl818_private *devpriv = dev->private; struct comedi_cmd *cmd = &s->async->cmd; int retval; @@ -1397,6 +1409,8 @@ static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) static int pcl818_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { + struct pcl818_private *devpriv = dev->private; + if (devpriv->irq_blocked > 0) { dev_dbg(dev->class_dev, "pcl818_ai_cancel()\n"); devpriv->irq_was_now_closed = 1; @@ -1482,6 +1496,7 @@ static int pcl818_check(unsigned long iobase) static void pcl818_reset(struct comedi_device *dev) { const struct pcl818_board *board = comedi_board(dev); + struct pcl818_private *devpriv = dev->private; if (devpriv->usefifo) { /* FIFO shutdown */ outb(0, dev->iobase + PCL818_FI_INTCLR); @@ -1552,6 +1567,7 @@ static int set_rtc_irq_bit(unsigned char bit) static void rtc_dropped_irq(unsigned long data) { struct comedi_device *dev = (void *)data; + struct pcl818_private *devpriv = dev->private; unsigned long flags, tmp; switch (devpriv->int818_mode) { @@ -1601,6 +1617,7 @@ static int rtc_setfreq_irq(int freq) static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it) { const struct pcl818_board *board = comedi_board(dev); + struct pcl818_private *devpriv; int ret; unsigned long iobase; unsigned int irq; @@ -1608,9 +1625,10 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it) unsigned long pages; struct comedi_subdevice *s; - ret = alloc_private(dev, sizeof(struct pcl818_private)); - if (ret < 0) - return ret; /* Can't alloc mem */ + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; + devpriv = dev->private; /* claim our I/O space */ iobase = it->options[0]; @@ -1892,7 +1910,9 @@ no_dma: static void pcl818_detach(struct comedi_device *dev) { - if (dev->private) { + struct pcl818_private *devpriv = dev->private; + + if (devpriv) { pcl818_ai_cancel(dev, devpriv->sub_ai); pcl818_reset(dev); if (devpriv->dma) diff --git a/drivers/staging/comedi/drivers/pcm3724.c b/drivers/staging/comedi/drivers/pcm3724.c index cbb344a0f725..6e9a4ec9e852 100644 --- a/drivers/staging/comedi/drivers/pcm3724.c +++ b/drivers/staging/comedi/drivers/pcm3724.c @@ -148,13 +148,12 @@ static void do_3724_config(struct comedi_device *dev, static void enable_chan(struct comedi_device *dev, struct comedi_subdevice *s, int chanspec) { + struct priv_pcm3724 *priv = dev->private; struct comedi_subdevice *s_dio1 = &dev->subdevices[0]; unsigned int mask; int gatecfg; - struct priv_pcm3724 *priv; gatecfg = 0; - priv = dev->private; mask = 1 << CR_CHAN(chanspec); if (s == s_dio1) @@ -225,6 +224,7 @@ static int subdev_3724_insn_config(struct comedi_device *dev, static int pcm3724_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct priv_pcm3724 *priv; struct comedi_subdevice *s; unsigned long iobase; unsigned int iorange; @@ -235,12 +235,10 @@ static int pcm3724_attach(struct comedi_device *dev, iobase = it->options[0]; iorange = PCM3724_SIZE; - ret = alloc_private(dev, sizeof(struct priv_pcm3724)); - if (ret < 0) - return -ENOMEM; - - ((struct priv_pcm3724 *)(dev->private))->dio_1 = 0; - ((struct priv_pcm3724 *)(dev->private))->dio_2 = 0; + ret = alloc_private(dev, sizeof(*priv)); + if (ret) + return ret; + priv = dev->private; printk(KERN_INFO "comedi%d: pcm3724: board=%s, 0x%03lx ", dev->minor, dev->board_name, iobase); diff --git a/drivers/staging/comedi/drivers/pcmad.c b/drivers/staging/comedi/drivers/pcmad.c index 5efeb9205c2e..5d5fc519d82a 100644 --- a/drivers/staging/comedi/drivers/pcmad.c +++ b/drivers/staging/comedi/drivers/pcmad.c @@ -62,7 +62,6 @@ struct pcmad_priv_struct { int differential; int twos_comp; }; -#define devpriv ((struct pcmad_priv_struct *)dev->private) #define TIMEOUT 100 @@ -71,6 +70,7 @@ static int pcmad_ai_insn_read(struct comedi_device *dev, struct comedi_insn *insn, unsigned int *data) { const struct pcmad_board_struct *board = comedi_board(dev); + struct pcmad_priv_struct *devpriv = dev->private; int i; int chan; int n; @@ -104,6 +104,7 @@ static int pcmad_ai_insn_read(struct comedi_device *dev, static int pcmad_attach(struct comedi_device *dev, struct comedi_devconfig *it) { const struct pcmad_board_struct *board = comedi_board(dev); + struct pcmad_priv_struct *devpriv; int ret; struct comedi_subdevice *s; unsigned long iobase; @@ -121,9 +122,10 @@ static int pcmad_attach(struct comedi_device *dev, struct comedi_devconfig *it) if (ret) return ret; - ret = alloc_private(dev, sizeof(struct pcmad_priv_struct)); - if (ret < 0) + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; + devpriv = dev->private; dev->board_name = board->name; diff --git a/drivers/staging/comedi/drivers/pcmda12.c b/drivers/staging/comedi/drivers/pcmda12.c index f2984f155061..c3009211026a 100644 --- a/drivers/staging/comedi/drivers/pcmda12.c +++ b/drivers/staging/comedi/drivers/pcmda12.c @@ -79,8 +79,6 @@ struct pcmda12_private { int simultaneous_xfer_mode; }; -#define devpriv ((struct pcmda12_private *)(dev->private)) - static void zero_chans(struct comedi_device *dev) { /* sets up an ASIC chip to defaults */ @@ -97,6 +95,7 @@ static void zero_chans(struct comedi_device *dev) static int ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct pcmda12_private *devpriv = dev->private; int i; int chan = CR_CHAN(insn->chanspec); @@ -139,6 +138,7 @@ static int ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, static int ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct pcmda12_private *devpriv = dev->private; int i; int chan = CR_CHAN(insn->chanspec); @@ -155,6 +155,7 @@ static int ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, static int pcmda12_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct pcmda12_private *devpriv; struct comedi_subdevice *s; unsigned long iobase; int ret; @@ -172,14 +173,10 @@ static int pcmda12_attach(struct comedi_device *dev, dev->board_name = dev->driver->driver_name; -/* - * Allocate the private structure area. alloc_private() is a - * convenient macro defined in comedidev.h. - */ - if (alloc_private(dev, sizeof(struct pcmda12_private)) < 0) { - printk(KERN_ERR "cannot allocate private data structure\n"); - return -ENOMEM; - } + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; + devpriv = dev->private; devpriv->simultaneous_xfer_mode = it->options[1]; diff --git a/drivers/staging/comedi/drivers/pcmmio.c b/drivers/staging/comedi/drivers/pcmmio.c index 6ab45dfe68f0..616652e00ef9 100644 --- a/drivers/staging/comedi/drivers/pcmmio.c +++ b/drivers/staging/comedi/drivers/pcmmio.c @@ -229,11 +229,6 @@ struct pcmmio_private { struct pcmmio_subdev_private *sprivs; }; -/* - * most drivers define the following macro to make it easy to - * access the private structure. - */ -#define devpriv ((struct pcmmio_private *)dev->private) #define subpriv ((struct pcmmio_subdev_private *)s->private) /* DIO devices are slightly special. Although it is possible to @@ -387,6 +382,8 @@ static int pcmmio_dio_insn_config(struct comedi_device *dev, static void switch_page(struct comedi_device *dev, int asic, int page) { + struct pcmmio_private *devpriv = dev->private; + if (asic < 0 || asic >= 1) return; /* paranoia */ if (page < 0 || page >= NUM_PAGES) @@ -403,6 +400,7 @@ static void switch_page(struct comedi_device *dev, int asic, int page) static void init_asics(struct comedi_device *dev) { /* sets up an ASIC chip to defaults */ + struct pcmmio_private *devpriv = dev->private; int asic; for (asic = 0; asic < 1; ++asic) { @@ -440,6 +438,8 @@ static void init_asics(struct comedi_device *dev) #ifdef notused static void lock_port(struct comedi_device *dev, int asic, int port) { + struct pcmmio_private *devpriv = dev->private; + if (asic < 0 || asic >= 1) return; /* paranoia */ if (port < 0 || port >= PORTS_PER_ASIC) @@ -454,6 +454,8 @@ static void lock_port(struct comedi_device *dev, int asic, int port) static void unlock_port(struct comedi_device *dev, int asic, int port) { + struct pcmmio_private *devpriv = dev->private; + if (asic < 0 || asic >= 1) return; /* paranoia */ if (port < 0 || port >= PORTS_PER_ASIC) @@ -468,6 +470,7 @@ static void unlock_port(struct comedi_device *dev, int asic, int port) static void pcmmio_stop_intr(struct comedi_device *dev, struct comedi_subdevice *s) { + struct pcmmio_private *devpriv = dev->private; int nports, firstport, asic, port; asic = subpriv->dio.intr.asic; @@ -490,6 +493,7 @@ static irqreturn_t interrupt_pcmmio(int irq, void *d) { int asic, got1 = 0; struct comedi_device *dev = (struct comedi_device *)d; + struct pcmmio_private *devpriv = dev->private; int i; for (asic = 0; asic < MAX_ASICS; ++asic) { @@ -649,6 +653,8 @@ static irqreturn_t interrupt_pcmmio(int irq, void *d) static int pcmmio_start_intr(struct comedi_device *dev, struct comedi_subdevice *s) { + struct pcmmio_private *devpriv = dev->private; + if (!subpriv->dio.intr.continuous && subpriv->dio.intr.stop_count == 0) { /* An empty acquisition! */ s->async->events |= COMEDI_CB_EOA; @@ -976,6 +982,7 @@ static int ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct pcmmio_private *devpriv; struct comedi_subdevice *s; int sdev_no, chans_left, n_dio_subdevs, n_subdevs, port, asic, thisasic_chanct = 0; @@ -998,15 +1005,10 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it) return -EIO; } -/* - * Allocate the private structure area. alloc_private() is a - * convenient macro defined in comedidev.h. - */ - if (alloc_private(dev, sizeof(struct pcmmio_private)) < 0) { - printk(KERN_ERR "comedi%d: cannot allocate private data structure\n", - dev->minor); - return -ENOMEM; - } + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; + devpriv = dev->private; for (asic = 0; asic < MAX_ASICS; ++asic) { devpriv->asics[asic].num = asic; @@ -1165,6 +1167,7 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it) static void pcmmio_detach(struct comedi_device *dev) { + struct pcmmio_private *devpriv = dev->private; int i; if (dev->iobase) diff --git a/drivers/staging/comedi/drivers/pcmuio.c b/drivers/staging/comedi/drivers/pcmuio.c index 0e32119bc3f9..360180438b31 100644 --- a/drivers/staging/comedi/drivers/pcmuio.c +++ b/drivers/staging/comedi/drivers/pcmuio.c @@ -194,11 +194,6 @@ struct pcmuio_private { struct pcmuio_subdev_private *sprivs; }; -/* - * most drivers define the following macro to make it easy to - * access the private structure. - */ -#define devpriv ((struct pcmuio_private *)dev->private) #define subpriv ((struct pcmuio_subdev_private *)s->private) /* DIO devices are slightly special. Although it is possible to @@ -348,6 +343,7 @@ static int pcmuio_dio_insn_config(struct comedi_device *dev, static void switch_page(struct comedi_device *dev, int asic, int page) { const struct pcmuio_board *board = comedi_board(dev); + struct pcmuio_private *devpriv = dev->private; if (asic < 0 || asic >= board->num_asics) return; /* paranoia */ @@ -404,6 +400,7 @@ static void init_asics(struct comedi_device *dev) static void lock_port(struct comedi_device *dev, int asic, int port) { const struct pcmuio_board *board = comedi_board(dev); + struct pcmuio_private *devpriv = dev->private; if (asic < 0 || asic >= board->num_asics) return; /* paranoia */ @@ -419,6 +416,7 @@ static void lock_port(struct comedi_device *dev, int asic, int port) static void unlock_port(struct comedi_device *dev, int asic, int port) { const struct pcmuio_board *board = comedi_board(dev); + struct pcmuio_private *devpriv = dev->private; if (asic < 0 || asic >= board->num_asics) return; /* paranoia */ @@ -435,6 +433,7 @@ static void pcmuio_stop_intr(struct comedi_device *dev, struct comedi_subdevice *s) { int nports, firstport, asic, port; + struct pcmuio_private *devpriv = dev->private; asic = subpriv->intr.asic; if (asic < 0) @@ -456,6 +455,7 @@ static irqreturn_t interrupt_pcmuio(int irq, void *d) { int asic, got1 = 0; struct comedi_device *dev = (struct comedi_device *)d; + struct pcmuio_private *devpriv = dev->private; int i; for (asic = 0; asic < MAX_ASICS; ++asic) { @@ -607,6 +607,8 @@ static irqreturn_t interrupt_pcmuio(int irq, void *d) static int pcmuio_start_intr(struct comedi_device *dev, struct comedi_subdevice *s) { + struct pcmuio_private *devpriv = dev->private; + if (!subpriv->intr.continuous && subpriv->intr.stop_count == 0) { /* An empty acquisition! */ s->async->events |= COMEDI_CB_EOA; @@ -748,6 +750,7 @@ pcmuio_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, static int pcmuio_attach(struct comedi_device *dev, struct comedi_devconfig *it) { const struct pcmuio_board *board = comedi_board(dev); + struct pcmuio_private *devpriv; struct comedi_subdevice *s; int sdev_no, chans_left, n_subdevs, port, asic, thisasic_chanct = 0; unsigned long iobase; @@ -772,15 +775,10 @@ static int pcmuio_attach(struct comedi_device *dev, struct comedi_devconfig *it) dev->board_name = board->name; -/* - * Allocate the private structure area. alloc_private() is a - * convenient macro defined in comedidev.h. - */ - if (alloc_private(dev, sizeof(struct pcmuio_private)) < 0) { - dev_warn(dev->class_dev, - "cannot allocate private data structure\n"); - return -ENOMEM; - } + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; + devpriv = dev->private; for (asic = 0; asic < MAX_ASICS; ++asic) { devpriv->asics[asic].num = asic; @@ -905,6 +903,7 @@ static int pcmuio_attach(struct comedi_device *dev, struct comedi_devconfig *it) static void pcmuio_detach(struct comedi_device *dev) { const struct pcmuio_board *board = comedi_board(dev); + struct pcmuio_private *devpriv = dev->private; int i; if (dev->iobase) diff --git a/drivers/staging/comedi/drivers/rtd520.c b/drivers/staging/comedi/drivers/rtd520.c index 41d24b08913b..b9fd16494d28 100644 --- a/drivers/staging/comedi/drivers/rtd520.c +++ b/drivers/staging/comedi/drivers/rtd520.c @@ -1608,12 +1608,9 @@ static int rtd_attach(struct comedi_device *dev, struct comedi_devconfig *it) comedi_debug = 1; #endif - /* - * Allocate the private structure area. alloc_private() is a - * convenient macro defined in comedidev.h. - */ - if (alloc_private(dev, sizeof(struct rtdPrivate)) < 0) - return -ENOMEM; + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; devpriv = dev->private; pcidev = rtd_find_pci(dev, it); diff --git a/drivers/staging/comedi/drivers/rti800.c b/drivers/staging/comedi/drivers/rti800.c index 137885b1681a..82dae22b0812 100644 --- a/drivers/staging/comedi/drivers/rti800.c +++ b/drivers/staging/comedi/drivers/rti800.c @@ -161,8 +161,6 @@ struct rti800_private { int muxgain_bits; }; -#define devpriv ((struct rti800_private *)dev->private) - #define RTI800_TIMEOUT 100 static irqreturn_t rti800_interrupt(int irq, void *dev) @@ -177,6 +175,7 @@ static int rti800_ai_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct rti800_private *devpriv = dev->private; int i, t; int status; int chan = CR_CHAN(insn->chanspec); @@ -229,6 +228,7 @@ static int rti800_ao_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct rti800_private *devpriv = dev->private; int i; int chan = CR_CHAN(insn->chanspec); @@ -242,6 +242,7 @@ static int rti800_ao_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct rti800_private *devpriv = dev->private; int chan = CR_CHAN(insn->chanspec); int d; int i; @@ -303,6 +304,7 @@ static int rti800_do_insn_bits(struct comedi_device *dev, static int rti800_attach(struct comedi_device *dev, struct comedi_devconfig *it) { const struct rti800_board *board = comedi_board(dev); + struct rti800_private *devpriv; unsigned int irq; unsigned long iobase; int ret; @@ -347,9 +349,10 @@ static int rti800_attach(struct comedi_device *dev, struct comedi_devconfig *it) if (ret) return ret; - ret = alloc_private(dev, sizeof(struct rti800_private)); - if (ret < 0) + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) return ret; + devpriv = dev->private; devpriv->adc_mux = it->options[2]; devpriv->adc_range = it->options[3]; diff --git a/drivers/staging/comedi/drivers/rti802.c b/drivers/staging/comedi/drivers/rti802.c index 3f9d0278be50..844e75ee9c48 100644 --- a/drivers/staging/comedi/drivers/rti802.c +++ b/drivers/staging/comedi/drivers/rti802.c @@ -55,12 +55,11 @@ struct rti802_private { unsigned int ao_readback[8]; }; -#define devpriv ((struct rti802_private *)dev->private) - static int rti802_ao_insn_read(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct rti802_private *devpriv = dev->private; int i; for (i = 0; i < insn->n; i++) @@ -73,6 +72,7 @@ static int rti802_ao_insn_write(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct rti802_private *devpriv = dev->private; int i, d; int chan = CR_CHAN(insn->chanspec); @@ -89,6 +89,7 @@ static int rti802_ao_insn_write(struct comedi_device *dev, static int rti802_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct rti802_private *devpriv; struct comedi_subdevice *s; int i; unsigned long iobase; @@ -104,8 +105,10 @@ static int rti802_attach(struct comedi_device *dev, struct comedi_devconfig *it) dev->board_name = "rti802"; - if (alloc_private(dev, sizeof(struct rti802_private))) - return -ENOMEM; + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; + devpriv = dev->private; ret = comedi_alloc_subdevices(dev, 1); if (ret) diff --git a/drivers/staging/comedi/drivers/serial2002.c b/drivers/staging/comedi/drivers/serial2002.c index 9ed6a7eef017..3f9221d4918f 100644 --- a/drivers/staging/comedi/drivers/serial2002.c +++ b/drivers/staging/comedi/drivers/serial2002.c @@ -64,12 +64,6 @@ struct serial2002_private { struct serial2002_range_table_t in_range[32], out_range[32]; }; -/* - * most drivers define the following macro to make it easy to - * access the private structure. - */ -#define devpriv ((struct serial2002_private *)dev->private) - struct serial_data { enum { is_invalid, is_digital, is_channel } kind; int index; @@ -344,6 +338,7 @@ static void serial_write(struct file *f, struct serial_data data) static int serial_2002_open(struct comedi_device *dev) { + struct serial2002_private *devpriv = dev->private; int result; char port[20]; @@ -651,6 +646,8 @@ err_alloc_configs: static void serial_2002_close(struct comedi_device *dev) { + struct serial2002_private *devpriv = dev->private; + if (!IS_ERR(devpriv->tty) && devpriv->tty) filp_close(devpriv->tty, NULL); } @@ -659,6 +656,7 @@ static int serial2002_di_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct serial2002_private *devpriv = dev->private; int n; int chan; @@ -681,6 +679,7 @@ static int serial2002_do_winsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct serial2002_private *devpriv = dev->private; int n; int chan; @@ -700,6 +699,7 @@ static int serial2002_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct serial2002_private *devpriv = dev->private; int n; int chan; @@ -722,6 +722,7 @@ static int serial2002_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct serial2002_private *devpriv = dev->private; int n; int chan; @@ -742,6 +743,7 @@ static int serial2002_ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct serial2002_private *devpriv = dev->private; int n; int chan = CR_CHAN(insn->chanspec); @@ -755,6 +757,7 @@ static int serial2002_ei_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct serial2002_private *devpriv = dev->private; int n; int chan; @@ -776,13 +779,18 @@ static int serial2002_ei_rinsn(struct comedi_device *dev, static int serial2002_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct serial2002_private *devpriv; struct comedi_subdevice *s; int ret; dev_dbg(dev->class_dev, "serial2002: attach\n"); dev->board_name = dev->driver->driver_name; - if (alloc_private(dev, sizeof(struct serial2002_private)) < 0) - return -ENOMEM; + + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; + devpriv = dev->private; + dev->open = serial_2002_open; dev->close = serial_2002_close; devpriv->port = it->options[0]; diff --git a/drivers/staging/comedi/drivers/skel.c b/drivers/staging/comedi/drivers/skel.c index b70cdf300bbd..d2ef7db62479 100644 --- a/drivers/staging/comedi/drivers/skel.c +++ b/drivers/staging/comedi/drivers/skel.c @@ -146,12 +146,6 @@ struct skel_private { }; /* - * most drivers define the following macro to make it easy to - * access the private structure. - */ -#define devpriv ((struct skel_private *)dev->private) - -/* * The struct comedi_driver structure tells the Comedi core module * which functions to call to configure/deconfigure (attach/detach) * the board, and also about the kernel module that contains @@ -211,6 +205,7 @@ static int skel_ns_to_timer(unsigned int *ns, int round); */ static int skel_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + struct skel_private *devpriv; struct comedi_subdevice *s; int ret; @@ -229,12 +224,11 @@ static int skel_attach(struct comedi_device *dev, struct comedi_devconfig *it) */ dev->board_name = thisboard->name; -/* - * Allocate the private structure area. alloc_private() is a - * convenient macro defined in comedidev.h. - */ - if (alloc_private(dev, sizeof(struct skel_private)) < 0) - return -ENOMEM; + /* Allocate the private data */ + ret = alloc_private(dev, sizeof(*devpriv)); + if (ret) + return ret; + devpriv = dev->private; ret = comedi_alloc_subdevices(dev, 3); if (ret) @@ -504,6 +498,7 @@ static int skel_ns_to_timer(unsigned int *ns, int round) static int skel_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct skel_private *devpriv = dev->private; int i; int chan = CR_CHAN(insn->chanspec); @@ -525,6 +520,7 @@ static int skel_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, static int skel_ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + struct skel_private *devpriv = dev->private; int i; int chan = CR_CHAN(insn->chanspec); |