Instead of checking the device type and returning -ENOTTY inside the ioctl
function, use v4l2_disable_ioctl() to disable the ioctl VIDIOC_S_PARM if the
device is not a camera.
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>