Make saa7134 driver more V4L2 compliant: return real frequency range in
g_tuner and fail in s_tuner for non-zero tuner
Signed-off-by: NOndrej Zary <linux@rainbow-software.org>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>