tree 81644a83e090a9e04e590cee63913413ae6166cd
parent f5a7973c32a39b2e16ef31f0f95ba47fcdac5b76
author Hans Verkuil <hverkuil-cisco@xs4all.nl> 1540808131 -0400
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1548227455 +0100

media: vivid: fix error handling of kthread_run

commit 701f49bc028edb19ffccd101997dd84f0d71e279 upstream.

kthread_run returns an error pointer, but elsewhere in the code
dev->kthread_vid_cap/out is checked against NULL.

If kthread_run returns an error, then set the pointer to NULL.

I chose this method over changing all kthread_vid_cap/out tests
elsewhere since this is more robust.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reported-by: syzbot+53d5b2df0d9744411e2e@syzkaller.appspotmail.com
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>