ath9k: Fix queue handling

The TX queues have to be stopped during an
internal reset. Not handling this would result
in packet loss - fix this.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/main.c

@@ -944,6 +944,8 @@ int ath_reset(struct ath_softc *sc, bool retry_tx)
 	/* Stop ANI */
 	del_timer_sync(&common->ani.timer);
 
+	ieee80211_stop_queues(hw);
+
 	ath9k_hw_set_interrupts(ah, 0);
 	ath_drain_all_txq(sc, retry_tx);
 	ath_stoprecv(sc);
@@ -985,6 +987,8 @@ int ath_reset(struct ath_softc *sc, bool retry_tx)
 		}
 	}
 
+	ieee80211_wake_queues(hw);
+
 	/* Start ANI */
 	ath_start_ani(common);