[media] bttv: don't setup the controls if there are no video devices
The no_video flag was checked in all other cases except one. Calling v4l2_ctrl_handler_setup() if no_video is 1 will crash. This wasn't noticed before since there are only two card types that set no_video to 1, so this type of hardware is quite rare. Signed-off-by:Hans Verkuil <hans.verkuil@cisco.com> Reported-by:
Lorenz Röhrl <sheepshit@gmx.de> Tested-by:
Lorenz Röhrl <sheepshit@gmx.de> Cc: stable@vger.kernel.org Signed-off-by:
Mauro Carvalho Chehab <m.chehab@samsung.com>
parent
0c413d10
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