DVB-C Annex C is mostly DVB-C Annex A with only minor differences, so simply add it to the DVB-C Annex A switch case, so that tuning attempts no longer result in -EINVAL. Link: https://lore.kernel.org/linux-media/trinity-fd7dd9e4-c319-4761-89b6-555fa7b23776-1641509569422@3c-app-gmx-bap68 Signed-off-by: Robert Schlabbach <robert_s@gmx.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>