On Tue, 2011-08-09 at 11:23 +0200, Stanislaw Gruszka wrote: > > But ... if sta_cleanup timer operates on freed memory, why doesn't > > "local->registered"? > > I think I was unclear. The sta_cleanup timer callback, namely > sta_info_cleanup(), can operate on freed memory. On > ieee80211_unregister_hw() -> sta_info_stop() we delete this timer, but > rdev/wiphy/local/hw structure is not freed. It's keep by reference > counter. You mean by device_del(&rdev->wiphy.dev) right? > Then if ieee80211_reconfig() is called, we schedule > sta_cleanup timer. After that, when sysfs drop reference counter we > free rdev. Then sta_info_cleanup() crash kernel. Ok let me get this straight -- even after device_del() we get a resume callback from the core subsystem? That doesn't seem right. 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
