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media: v4l2-ioctl.c: fix missing unlock in __video_do_ioctl()

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If dev_debug was active, then the code could return without unlocking the
core mutex. Replace the return with a 'goto unlock' to ensure proper unlocking.

Fixes: 73a110623e ("v4l2-core: push taking ioctl mutex down to ioctl handler")

Signed-off-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
This commit is contained in:
Hans Verkuil 2018-06-04 07:22:28 -04:00 • committed by Mauro Carvalho Chehab
commit 5983d3bca5
1 changed files with 1 additions and 1 deletions
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drivers/media/v4l2-core/v4l2-ioctl.c
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@ -2777,7 +2777,7 @@ done:
if (dev_debug & (V4L2_DEV_DEBUG_IOCTL | V4L2_DEV_DEBUG_IOCTL_ARG)) {
if (!(dev_debug & V4L2_DEV_DEBUG_STREAMING) &&
(cmd == VIDIOC_QBUF || cmd == VIDIOC_DQBUF))
return ret;
goto unlock;
v4l_printk_ioctl(video_device_node_name(vfd), cmd);
if (ret < 0)