From d56dc61265d2527a63ab5b0f03199a43cd89ca36 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 30 Jul 2008 08:43:36 -0300 Subject: V4L/DVB (8613): v4l: move BKL down to the driver level. The BKL is now moved from the video_open function in v4l2-dev.c to the various drivers. It seems about a third of the drivers already has a lock of some sort protecting the open(), another third uses video_exclusive_open (yuck!) and the last third required adding the BKL in their open function. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/se401.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers/media/video/se401.c') diff --git a/drivers/media/video/se401.c b/drivers/media/video/se401.c index acceed5d04ae..d16bbf0d2783 100644 --- a/drivers/media/video/se401.c +++ b/drivers/media/video/se401.c @@ -936,14 +936,18 @@ static int se401_open(struct inode *inode, struct file *file) struct usb_se401 *se401 = (struct usb_se401 *)dev; int err = 0; - if (se401->user) + lock_kernel(); + if (se401->user) { + unlock_kernel(); return -EBUSY; + } se401->fbuf = rvmalloc(se401->maxframesize * SE401_NUMFRAMES); if (se401->fbuf) file->private_data = dev; else err = -ENOMEM; se401->user = !err; + unlock_kernel(); return err; } -- cgit v1.2.3 From aa5e90af7d78d1711f8f4275ce3638817c0023dc Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sat, 23 Aug 2008 06:23:55 -0300 Subject: V4L/DVB (8783): v4l: add all missing video_device release callbacks All drivers that call video_device_register where checked to see if they set the release callback of struct video_device. Where that callback was missing it was added. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/se401.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/media/video/se401.c') diff --git a/drivers/media/video/se401.c b/drivers/media/video/se401.c index d16bbf0d2783..b01f25d72922 100644 --- a/drivers/media/video/se401.c +++ b/drivers/media/video/se401.c @@ -1236,6 +1236,7 @@ static const struct file_operations se401_fops = { static struct video_device se401_template = { .name = "se401 USB camera", .fops = &se401_fops, + .release = video_device_release_empty, }; -- cgit v1.2.3 From a482f327ff56bc3cf53176a7eb736cea47291a1d Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Fri, 10 Oct 2008 05:08:23 -0300 Subject: V4L/DVB (9116): USB: remove info() macro from usb media drivers USB should not be having it's own printk macros, so remove info() and use the system-wide standard of dev_info() wherever possible. Cc: Douglas Landgraf Cc: Mike Isely Cc: Thierry Merle Cc: Antoine Jacquet Signed-off-by: Greg Kroah-Hartman Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/se401.c | 37 +++++++++++++++++++++---------------- 1 file changed, 21 insertions(+), 16 deletions(-) (limited to 'drivers/media/video/se401.c') diff --git a/drivers/media/video/se401.c b/drivers/media/video/se401.c index b01f25d72922..ae3949180c4e 100644 --- a/drivers/media/video/se401.c +++ b/drivers/media/video/se401.c @@ -288,7 +288,7 @@ static void se401_button_irq(struct urb *urb) int status; if (!se401->dev) { - info("ohoh: device vapourished"); + dev_info(&urb->dev->dev, "device vapourished\n"); return; } @@ -328,7 +328,7 @@ static void se401_video_irq(struct urb *urb) return; if (!se401->dev) { - info ("ohoh: device vapourished"); + dev_info(&urb->dev->dev, "device vapourished\n"); return; } @@ -375,7 +375,7 @@ static void se401_video_irq(struct urb *urb) urb->status=0; urb->dev=se401->dev; if(usb_submit_urb(urb, GFP_KERNEL)) - info("urb burned down"); + dev_info(&urb->dev->dev, "urb burned down\n"); return; } @@ -860,7 +860,8 @@ static int se401_newframe(struct usb_se401 *se401, int framenr) ); if (se401->nullpackets > SE401_MAX_NULLPACKETS) { se401->nullpackets=0; - info("to many null length packets, restarting capture"); + dev_info(&se401->dev->dev, + "too many null length packets, restarting capture\n"); se401_stop_stream(se401); se401_start_stream(se401); } else { @@ -880,7 +881,8 @@ static int se401_newframe(struct usb_se401 *se401, int framenr) se401->scratch_use=0; if (errors > SE401_MAX_ERRORS) { errors=0; - info("to much errors, restarting capture"); + dev_info(&se401->dev->dev, + "too many errors, restarting capture\n"); se401_stop_stream(se401); se401_start_stream(se401); } @@ -913,7 +915,7 @@ static void usb_se401_remove_disconnected (struct usb_se401 *se401) usb_kill_urb(se401->inturb); usb_free_urb(se401->inturb); } - info("%s disconnected", se401->camera_name); + dev_info(&se401->dev->dev, "%s disconnected", se401->camera_name); /* Free the memory */ kfree(se401->width); @@ -960,8 +962,8 @@ static int se401_close(struct inode *inode, struct file *file) rvfree(se401->fbuf, se401->maxframesize * SE401_NUMFRAMES); if (se401->removed) { + dev_info(&se401->dev->dev, "device unregistered\n"); usb_se401_remove_disconnected(se401); - info("device unregistered"); } else { for (i=0; iframe[i].grabstate=FRAME_UNUSED; @@ -1276,7 +1278,7 @@ static int se401_init(struct usb_se401 *se401, int button) for (i=0; isizes; i++) { sprintf(temp, "%s %dx%d", temp, se401->width[i], se401->height[i]); } - info("%s", temp); + dev_info(&se401->dev->dev, "%s\n", temp); se401->maxframesize=se401->width[se401->sizes-1]*se401->height[se401->sizes-1]*3; rc=se401_sndctrl(0, se401, SE401_REQ_GET_WIDTH, 0, cp, sizeof(cp)); @@ -1310,7 +1312,8 @@ static int se401_init(struct usb_se401 *se401, int button) if (button) { se401->inturb=usb_alloc_urb(0, GFP_KERNEL); if (!se401->inturb) { - info("Allocation of inturb failed"); + dev_info(&se401->dev->dev, + "Allocation of inturb failed\n"); return 1; } usb_fill_int_urb(se401->inturb, se401->dev, @@ -1321,7 +1324,7 @@ static int se401_init(struct usb_se401 *se401, int button) 8 ); if (usb_submit_urb(se401->inturb, GFP_KERNEL)) { - info("int urb burned down"); + dev_info(&se401->dev->dev, "int urb burned down\n"); return 1; } } else @@ -1378,7 +1381,7 @@ static int se401_probe(struct usb_interface *intf, return -ENODEV; /* We found one */ - info("SE401 camera found: %s", camera_name); + dev_info(&intf->dev, "SE401 camera found: %s\n", camera_name); if ((se401 = kzalloc(sizeof(*se401), GFP_KERNEL)) == NULL) { err("couldn't kmalloc se401 struct"); @@ -1389,7 +1392,8 @@ static int se401_probe(struct usb_interface *intf, se401->iface = interface->bInterfaceNumber; se401->camera_name = camera_name; - info("firmware version: %02x", le16_to_cpu(dev->descriptor.bcdDevice) & 255); + dev_info(&intf->dev, "firmware version: %02x\n", + le16_to_cpu(dev->descriptor.bcdDevice) & 255); if (se401_init(se401, button)) { kfree(se401); @@ -1407,7 +1411,8 @@ static int se401_probe(struct usb_interface *intf, err("video_register_device failed"); return -EIO; } - info("registered new video device: video%d", se401->vdev.minor); + dev_info(&intf->dev, "registered new video device: video%d\n", + se401->vdev.minor); usb_set_intfdata (intf, se401); return 0; @@ -1451,10 +1456,10 @@ static struct usb_driver se401_driver = { static int __init usb_se401_init(void) { - info("SE401 usb camera driver version %s registering", version); + printk(KERN_INFO "SE401 usb camera driver version %s registering\n", version); if (flickerless) if (flickerless!=50 && flickerless!=60) { - info("Invallid flickerless value, use 0, 50 or 60."); + printk(KERN_ERR "Invallid flickerless value, use 0, 50 or 60.\n"); return -1; } return usb_register(&se401_driver); @@ -1463,7 +1468,7 @@ static int __init usb_se401_init(void) static void __exit usb_se401_exit(void) { usb_deregister(&se401_driver); - info("SE401 driver deregistered"); + printk(KERN_INFO "SE401 driver deregistered\frame"); } module_init(usb_se401_init); -- cgit v1.2.3