On Fri, Dec 7, 2012 at 11:25 PM, Alan Stern <[email protected]> wrote: > On Fri, 7 Dec 2012, Ming Lei wrote: >> device_pm_lock() can prevent device_move() from being running. > > That wouldn't prevent problems during unbinding. Wedson is right; the
Right. > places that lock dev->parent must save a local copy of dev->parent. One simple fix is to remove acquiring/releasing dev->parent lock and get/put the parent reference, because holding the device lock only may avoid the race between probe/remove and shutdown. But __driver_attach and __device_release_driver need save the local copy of dev->parent. Thanks, -- Ming Lei -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
