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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2008-07-30 08:43:36 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-10-12 09:36:47 -0200 |
| commit | d56dc61265d2527a63ab5b0f03199a43cd89ca36 (patch) | |
| tree | bea2a5b12fc120ca6e8797b2f16ad9696e0f25dd /drivers/media/video/vivi.c | |
| parent | 95f73c5b57990c97047c200b8746ab62a360c5bc (diff) | |
| download | kernel_samsung_crespo-d56dc61265d2527a63ab5b0f03199a43cd89ca36.tar.gz kernel_samsung_crespo-d56dc61265d2527a63ab5b0f03199a43cd89ca36.tar.bz2 kernel_samsung_crespo-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/vivi.c')
| -rw-r--r-- | drivers/media/video/vivi.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c index 8ba8daafd7e..65c8af18e76 100644 --- a/drivers/media/video/vivi.c +++ b/drivers/media/video/vivi.c @@ -898,9 +898,11 @@ static int vivi_open(struct inode *inode, struct file *file) printk(KERN_DEBUG "vivi: open called (minor=%d)\n", minor); + lock_kernel(); list_for_each_entry(dev, &vivi_devlist, vivi_devlist) if (dev->vfd->minor == minor) goto found; + unlock_kernel(); return -ENODEV; found: @@ -925,8 +927,10 @@ found: } unlock: mutex_unlock(&dev->mutex); - if (retval) + if (retval) { + unlock_kernel(); return retval; + } file->private_data = fh; fh->dev = dev; @@ -955,6 +959,7 @@ unlock: sizeof(struct vivi_buffer), fh); vivi_start_thread(fh); + unlock_kernel(); return 0; } |