On Freitag, 24. Oktober 2008, Darron Broad wrote: > In message <200810241247.08480.zzam@xxxxxxxxxx>, Matthias Schwarzott wrote: > > Hiya. > > >Hi! > > > >@Mauro: Please pull this patch > >There already is an report at kernel bugzilla about this issue: > >http://bugzilla.kernel.org/show_bug.cgi?id=9455 > > > >When enabling extra checks for the i2c-bus of cx88 based cards by > >loading i2c_algo_bit with bit_test=1 this may trigger an oops > >when loading cx88_dvb. > > > >This is caused by the extra check code that detects that the > >sda-line is stuck high and thus does not register the i2c-bus. > > > >cx88-dvb however does not check if the i2c-bus is valid and just > >uses core->i2c_adap to attach dvb frontend modules. > >This leads to an oops at the first call to i2c_transfer: > > > ># modprobe i2c_algo_bit bit_test=1 > ># modprobe cx8802 > > Thanks for this information. If you don't mind, would you let > me utilise this fix in another way? > > I have been auditing MFE additions and I need to change > something elsewhere and can see an alternative to > to bailing out in dvb_register? > > Thanks I think Mauro already applied it, but well, if you want it in another place, the check could also be placed in cx8802_dvb_probe around the line where vp3054_i2c_probe is called. Regards Matthias _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
