[media] v4l: async: check for v4l2_dev in v4l2_async_notifier_register()
authorNiklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Tue, 13 Jun 2017 14:30:35 +0000 (11:30 -0300)
committerMauro Carvalho Chehab <mchehab@s-opensource.com>
Tue, 20 Jun 2017 12:08:17 +0000 (09:08 -0300)
commitfbf1e94f0055d825f8d56b3abe322f37ba818d5a
tree4f2909380261c9c9704cc92849b1cf69d263c493
parent31165ad4c2c18e0e186dd66e920c2b69de5bd0af
[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>
drivers/media/v4l2-core/v4l2-async.c