On Sun, Dec 26, 2010 at 1:45 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote: > (It still is not a race, though.) Thread 1 ======= suspend_handler_of_a_random_device() { return failure; } Thread 2 ======= suspend_handler_of_our_mmc_host_controller() { invoke our sdio suspend handler and power down the card (directly); return success; } If thread 2 wins => everything is cool If thread 1 wins => our driver will not be able to resume The race begins after mac80211 invokes our driver's power off handler, which is using pm_runtime_put_sync(). -- 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