ath9k: Fix TX poll routine

Disable the TX hang monitoring routine when doing a scan.
Monitoring for a hung situation is not really necessary during
a scan run.

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

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index adb0edf..6401b35 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -3121,6 +3121,7 @@ static void ath9k_sw_scan_start(struct ieee80211_hw *hw)
        ath9k_wiphy_pause_all_forced(sc, aphy);
        sc->sc_flags |= SC_OP_SCANNING;
        del_timer_sync(&common->ani.timer);
+       cancel_delayed_work_sync(&sc->tx_complete_work);
        mutex_unlock(&sc->mutex);
 }
 
@@ -3135,6 +3136,7 @@ static void ath9k_sw_scan_complete(struct ieee80211_hw *hw)
        sc->sc_flags &= ~SC_OP_SCANNING;
        sc->sc_flags |= SC_OP_FULL_RESET;
        ath_start_ani(common);
+       ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0);
        ath_beacon_config(sc, NULL);
        mutex_unlock(&sc->mutex);
 }