diff options
| author | Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> | 2017-06-13 11:30:35 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-06-20 09:08:17 -0300 |
| commit | fbf1e94f0055d825f8d56b3abe322f37ba818d5a (patch) | |
| tree | 4f2909380261c9c9704cc92849b1cf69d263c493 /drivers/media | |
| parent | 31165ad4c2c18e0e186dd66e920c2b69de5bd0af (diff) | |
[media] v4l: async: check for v4l2_dev in v4l2_async_notifier_register()
Add a check for v4l2_dev to v4l2_async_notifier_register() as to fail as
early as possible since this will fail later in v4l2_async_test_notify().
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-async.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c index cbd919d4edd2..c16200c88417 100644 --- a/drivers/media/v4l2-core/v4l2-async.c +++ b/drivers/media/v4l2-core/v4l2-async.c @@ -148,7 +148,8 @@ int v4l2_async_notifier_register(struct v4l2_device *v4l2_dev, struct v4l2_async_subdev *asd; int i; - if (!notifier->num_subdevs || notifier->num_subdevs > V4L2_MAX_SUBDEVS) + if (!v4l2_dev || !notifier->num_subdevs || + notifier->num_subdevs > V4L2_MAX_SUBDEVS) return -EINVAL; notifier->v4l2_dev = v4l2_dev; |