On Wed, Nov 9, 2016 at 3:09 AM, Jörg Otte <jrg.o...@gmail.com> wrote: > > Tried patch with no success. Again a NULL ptr dereferece.
That patch was pure garbage, I think. Pretty much all the other drivers that use the same approach will have the same issue. Adding that init function just for the semaphore is crazy. I suspect a much simpler approach is to just miove the "data_mutex" away from the priv area and into "struct dvb_usb_device" and "dvb_usb_adapter". Sure, that grows those structures a tiny bit, and not every driver may need that mutex, but it simplifies things enormously. Mauro? Linus