[media] media: rc: rdev->open or rdev->close can be NULL
[media] media: rc: rdev->open or rdev->close can be NULL

At least technisat-usb2.c doesn't set these...

Signed-off-by: Juergen Lock <db34091a300796f6061e3246e3b203b12c668079@jelal.kn-bremen.de>
Signed-off-by: Mauro Carvalho Chehab <0cae1d1e981e84d16b82ca3d17be8a7f826608d3@samsung.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs