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/stk-webcam.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers/media/video/stk-webcam.c') diff --git a/drivers/media/video/stk-webcam.c b/drivers/media/video/stk-webcam.c index ad36af3..6b1ef5d 100644 --- a/drivers/media/video/stk-webcam.c +++ b/drivers/media/video/stk-webcam.c @@ -689,11 +689,15 @@ static int v4l_stk_open(struct inode *inode, struct file *fp) vdev = video_devdata(fp); dev = vdev_to_camera(vdev); - if (dev == NULL || !is_present(dev)) + lock_kernel(); + if (dev == NULL || !is_present(dev)) { + unlock_kernel(); return -ENXIO; + } fp->private_data = vdev; kref_get(&dev->kref); usb_autopm_get_interface(dev->interface); + unlock_kernel(); return 0; } -- cgit v1.1