On Thu, 2013-03-21 at 22:12 +0100, Johannes Berg wrote: > From: Johannes Berg <johannes.berg@xxxxxxxxx> > > If a P2P device wdev is removed while it has a scan, then the > scan completion might crash later as it is already freed by > that time. To avoid the crash always check the scan completion > when the P2P device is being removed for some reason. If the > driver already canceled it, don't want and free it, otherwise > warn and leak it to avoid later crashes. > > In order to do this, locking needs to be changed away from the > rdev mutex (which can't always be guaranteed). For now, use > the sched_scan_mtx instead, I'll rename it to just scan_mtx in > a later patch. Still broken, in other ways :-( The locking here is tricky, I think I'll give up on this for 3.9 and disable P2P Device in iwlmvm there. johannes -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
