V4L/DVB (11069): au8522: add mutex protecting use of hybrid state

Access using the hybrid state framework requires the list to be protected by
a mutex.

Thanks to Michael Krufky <mkrufky@linuxtv.org> for reporting this during a
code review.

Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
1 file changed