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| author | Laurent Pinchart | 2014-11-01 14:32:28 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab | 2014-12-04 15:41:51 +0100 |
| commit | 69c0e9c547817fef14871bc5c4645fad683f242e (patch) | |
| tree | 1111885af6e5602910bdc1e144cd424948869cb8 /drivers/media/platform/exynos-gsc/gsc-core.c | |
| parent | [media] v4l: vb2: Fix race condition in vb2_fop_poll (diff) | |
| download | kernel-qcow2-linux-69c0e9c547817fef14871bc5c4645fad683f242e.tar.gz kernel-qcow2-linux-69c0e9c547817fef14871bc5c4645fad683f242e.tar.xz kernel-qcow2-linux-69c0e9c547817fef14871bc5c4645fad683f242e.zip | |
[media] v4l: vb2: Fix race condition in _vb2_fop_release
The function releases the queue if the file being released is the queue
owner. The check reads the queue->owner field without taking the queue
lock, creating a race condition with functions that set the queue owner,
such as vb2_ioctl_reqbufs() for instance.
Fix this by moving the queue->owner check within the mutex protected
section.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/platform/exynos-gsc/gsc-core.c')
0 files changed, 0 insertions, 0 deletions