tree a787ce86b8b276bc936e0a16c74893fdb53c083c
parent 7daa4a8897e79911f524ddac065adea05c7e9b16
author Michael Krufky <mkrufky@linuxtv.org> 1208886364 -0300
committer Mauro Carvalho Chehab <mchehab@infradead.org> 1209056871 -0300

V4L/DVB (7379): tuner: prevent instance sharing if i2c adapter is NULL

We currently do not have a method to enable instance staring if i2c adapter
is NULL, in the cases of dvb demods that write to the tuner directly using
calc_regs.  Prevent possible wrong instance sharing for these cases until
a better solution can be found.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>