Instead of using ieee80211_stop_queue, check the configured tx queue
limit before calling ieee80211_get_buffered_bc.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
                goto drop_packet;
        }
 
-       if (txq->txq_len >= txq->txq_max)
+       if (txq->txq_len >= txq->txq_max &&
+           txq->qnum <= AR5K_TX_QUEUE_ID_DATA_MAX)
                ieee80211_stop_queue(hw, txq->qnum);
 
        spin_lock_irqsave(&sc->txbuflock, flags);
        skb = ieee80211_get_buffered_bc(sc->hw, vif);
        while (skb) {
                ath5k_tx_queue(sc->hw, skb, sc->cabq);
+
+               if (sc->cabq->txq_len >= sc->cabq->txq_max)
+                       break;
+
                skb = ieee80211_get_buffered_bc(sc->hw, vif);
        }