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authorHans Verkuil <hverkuil@xs4all.nl>2008-07-30 08:43:36 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-10-12 09:36:47 -0200
commitd56dc61265d2527a63ab5b0f03199a43cd89ca36 (patch)
treebea2a5b12fc120ca6e8797b2f16ad9696e0f25dd /drivers/media/video/v4l2-dev.c
parentV4L/DVB (8561): make ivtv_claim_stream() static (diff)
downloadlinux-dev-d56dc61265d2527a63ab5b0f03199a43cd89ca36.tar.xz
linux-dev-d56dc61265d2527a63ab5b0f03199a43cd89ca36.zip
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 <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/v4l2-dev.c')
-rw-r--r--drivers/media/video/v4l2-dev.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
index 155fdec9ac7d..6b9f3cb0de98 100644
--- a/drivers/media/video/v4l2-dev.c
+++ b/drivers/media/video/v4l2-dev.c
@@ -116,7 +116,6 @@ static int video_open(struct inode *inode, struct file *file)
if (minor >= VIDEO_NUM_DEVICES)
return -ENODEV;
- lock_kernel();
mutex_lock(&videodev_lock);
vfl = video_device[minor];
if (vfl == NULL) {
@@ -126,7 +125,6 @@ static int video_open(struct inode *inode, struct file *file)
vfl = video_device[minor];
if (vfl == NULL) {
mutex_unlock(&videodev_lock);
- unlock_kernel();
return -ENODEV;
}
}
@@ -140,7 +138,6 @@ static int video_open(struct inode *inode, struct file *file)
}
fops_put(old_fops);
mutex_unlock(&videodev_lock);
- unlock_kernel();
return err;
}