diff options
author | H Hartley Sweeten <hartleys@visionengravers.com> | 2012-07-18 19:03:43 -0700 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-07-19 16:51:39 -0700 |
commit | 81f9334602a4bec05614cdc228ac5515f03b854e (patch) | |
tree | ef6097a8ea7ba30c6c9933e199f9fadb1d11f7b2 /drivers/staging/comedi/drivers/me_daq.c | |
parent | b92169fd857421825e16f68d178c48f8727e75cc (diff) |
staging: comedi: me_daq: cleanup "find pci device" code
Cleanup the "find pci device" code so that it follows the style
of the other comedi pci drivers.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/comedi/drivers/me_daq.c')
-rw-r--r-- | drivers/staging/comedi/drivers/me_daq.c | 63 |
1 files changed, 23 insertions, 40 deletions
diff --git a/drivers/staging/comedi/drivers/me_daq.c b/drivers/staging/comedi/drivers/me_daq.c index dc0fbbd895ff..cd66af936dc5 100644 --- a/drivers/staging/comedi/drivers/me_daq.c +++ b/drivers/staging/comedi/drivers/me_daq.c @@ -231,8 +231,6 @@ static const struct me_board me_boards[] = { } }; -#define me_board_nbr (sizeof(me_boards)/sizeof(struct me_board)) - /* Private data structure */ struct me_private_data { struct pci_dev *pci_device; @@ -613,49 +611,34 @@ static int me_reset(struct comedi_device *dev) static struct pci_dev *me_find_pci_dev(struct comedi_device *dev, struct comedi_devconfig *it) { - struct pci_dev *pci_device = NULL; + const struct me_board *board; + struct pci_dev *pcidev = NULL; + int bus = it->options[0]; + int slot = it->options[1]; int i; - /* Probe the device to determine what device in the series it is. */ - for_each_pci_dev(pci_device) { - if (pci_device->vendor == PCI_VENDOR_ID_MEILHAUS) { - for (i = 0; i < me_board_nbr; i++) { - if (me_boards[i].device_id == - pci_device->device) { - /* - * was a particular bus/slot requested? - */ - if ((it->options[0] != 0) - || (it->options[1] != 0)) { - /* - * are we on the wrong bus/slot? - */ - if (pci_device->bus->number != - it->options[0] - || - PCI_SLOT(pci_device->devfn) - != it->options[1]) { - continue; - } - } - - dev->board_ptr = me_boards + i; - goto found; - } - } + for_each_pci_dev(pcidev) { + if (bus || slot) { + if (pcidev->bus->number != bus || + PCI_SLOT(pcidev->devfn) != slot) + continue; } - } + if (pcidev->vendor != PCI_VENDOR_ID_MEILHAUS) + continue; - printk(KERN_ERR - "comedi%d: no supported board found! (req. bus/slot : %d/%d)\n", - dev->minor, it->options[0], it->options[1]); - return NULL; + for (i = 0; i < ARRAY_SIZE(me_boards); i++) { + board = &me_boards[i]; + if (board->device_id != pcidev->device) + continue; -found: - printk(KERN_INFO "comedi%d: found %s at PCI bus %d, slot %d\n", - dev->minor, me_boards[i].name, - pci_device->bus->number, PCI_SLOT(pci_device->devfn)); - return pci_device; + dev->board_ptr = board; + return pcidev; + } + } + dev_err(dev->class_dev, + "No supported board found! (req. bus %d, slot %d)\n", + bus, slot); + return NULL; } static int me_attach(struct comedi_device *dev, struct comedi_devconfig *it) |