diff options
| author |   Ezequiel Garcia <ezequiel@collabora.com> | 2018-06-15 15:07:29 -0400 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-07-04 08:02:05 -0400 |
| commit | 4e55969f2308129b0fd1aa90438553728e21ec7d (patch) | |
| tree | b9eec71c20b1872f307834afa824a70b299f314b /tools/perf/scripts/python/stackcollapse.py | |
| parent | media: staging: bcm2835-camera: Provide lock for vb2_queue (diff) | |
media: davinci_vpfe: Add video_device and vb2_queue locks
Currently, this driver does not serialize its video4linux
ioctls, which is a bug, as race conditions might appear.
In addition, video_device and vb2_queue locks are now both
mandatory. Add them, and implement wait_prepare and
wait_finish.
To stay on the safe side, this commit uses a single mutex
for both locks. Better latency can be obtained by separating
these if needed.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions