rt2x00lib_beacondone() is called from interrupt context,
this means we cannot use the mac80211 interface iterator
that uses the rtnl lock (since that uses a mutex which can sleep).
Instead we should use the atomic mac80211 interface iterator.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
        if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
                return;
 
-       ieee80211_iterate_active_interfaces(rt2x00dev->hw,
-                                           rt2x00lib_beacondone_iter,
-                                           rt2x00dev);
+       ieee80211_iterate_active_interfaces_atomic(rt2x00dev->hw,
+                                                  rt2x00lib_beacondone_iter,
+                                                  rt2x00dev);
 
        queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->intf_work);
 }