video_device_release() does kfree(), which made the following printk()
doing a use-after-free.

printk() first and release then.
Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>