[GIT PULL for 4.15] V4L2 async NULL dereference fix

[Sakari Ailus <sakari.ailus@xxxxxx>]

Hi Mauro,

There was a rather subtle problem in the recent V4L2 async patches that
could lead to NULL pointer dereference in some situations. This simple
patch from Niklas addresses that.

Please pull.


The following changes since commit 9917fbcfa20ab987d6381fd0365665e5c1402d75:

  media: camss-vfe: always initialize reg at vfe_set_xbar_cfg() (2017-11-01 12:25:59 -0400)

are available in the git repository at:

  ssh://linuxtv.org/git/sailus/media_tree.git for-4.15-7

for you to fetch changes up to a01b5d89dc19d7b622104bbd27698687bbb2ffe6:

  media: v4l: async: fix unregister for implicitly registered sub-device notifiers (2017-11-06 00:44:45 +0200)

----------------------------------------------------------------
Niklas Söderlund (1):
      media: v4l: async: fix unregister for implicitly registered sub-device notifiers

 drivers/media/v4l2-core/v4l2-async.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
Kind regards,

Sakari Ailus
e-mail: sakari.ailus@xxxxxx