mac80211: fix fragmentation kludge

This patch make mac80211 transmit correctly fragmented packet after
queue was stopped

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 19f85e1..0d463c8 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -361,6 +361,7 @@
 	struct ieee80211_local *local = hw_to_local(hw);
 
 	if (test_bit(queue, local->queues_pending)) {
+		set_bit(queue, local->queues_pending_run);
 		tasklet_schedule(&local->tx_pending_tasklet);
 	} else {
 		netif_wake_subqueue(local->mdev, queue);