ath9k: fix tx queue scheduling after channel changes

Otherwise, if queues are full during a scan, tx scheduling does not
resume after switching back to the home channel.

Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
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 e4f65900132dedf40a68e2299b2a6177e8dfaf89..709301f88dcd26210a18db4d6eb1f8e230905608 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -208,6 +208,7 @@ static bool ath_complete_reset(struct ath_softc *sc, bool start)
        struct ath_hw *ah = sc->sc_ah;
        struct ath_common *common = ath9k_hw_common(ah);
        unsigned long flags;
+       int i;
 
        if (ath_startrecv(sc) != 0) {
                ath_err(common, "Unable to restart recv logic\n");
@@ -235,6 +236,15 @@ static bool ath_complete_reset(struct ath_softc *sc, bool start)
                }
        work:
                ath_restart_work(sc);
+
+               for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
+                       if (!ATH_TXQ_SETUP(sc, i))
+                               continue;
+
+                       spin_lock_bh(&sc->tx.txq[i].axq_lock);
+                       ath_txq_schedule(sc, &sc->tx.txq[i]);
+                       spin_unlock_bh(&sc->tx.txq[i].axq_lock);
+               }
        }
 
        ieee80211_wake_queues(sc->hw);
@@ -539,21 +549,10 @@ chip_reset:
 
 static int ath_reset(struct ath_softc *sc)
 {
-       int i, r;
+       int r;
 
        ath9k_ps_wakeup(sc);
-
        r = ath_reset_internal(sc, NULL);
-
-       for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
-               if (!ATH_TXQ_SETUP(sc, i))
-                       continue;
-
-               spin_lock_bh(&sc->tx.txq[i].axq_lock);
-               ath_txq_schedule(sc, &sc->tx.txq[i]);
-               spin_unlock_bh(&sc->tx.txq[i].axq_lock);
-       }
-
        ath9k_ps_restore(sc);
 
        return r;