diff --git a/drivers/net/wireless/ath9k/xmit.c b/drivers/net/wireless/ath9k/xmit.c
index ec359c624831eaa559f5f6b5873ec7bad35adb80..e2e847db0891eb063eb79483188602241a9bcef7 100644
--- a/drivers/net/wireless/ath9k/xmit.c
+++ b/drivers/net/wireless/ath9k/xmit.c
@@ -310,6 +310,7 @@ static void ath_tx_complete_buf(struct ath_softc *sc,
 {
 	struct sk_buff *skb = bf->bf_mpdu;
 	struct ath_xmit_status tx_status;
+	unsigned long flags;
 
 	/*
 	 * Set retry information.
@@ -340,9 +341,9 @@ static void ath_tx_complete_buf(struct ath_softc *sc,
 	/*
 	 * Return the list of ath_buf of this mpdu to free queue
 	 */
-	spin_lock_bh(&sc->sc_txbuflock);
+	spin_lock_irqsave(&sc->sc_txbuflock, flags);
 	list_splice_tail_init(bf_q, &sc->sc_txbuf);
-	spin_unlock_bh(&sc->sc_txbuflock);
+	spin_unlock_irqrestore(&sc->sc_txbuflock, flags);
 }
 
 /*