diff --git a/drivers/net/wireless/ath9k/recv.c b/drivers/net/wireless/ath9k/recv.c
index 2fe8061..20ddb7a 100644
--- a/drivers/net/wireless/ath9k/recv.c
+++ b/drivers/net/wireless/ath9k/recv.c
@@ -360,8 +360,9 @@
 	struct ath_arx_tid *rxtid, int drop)
 {
 	struct ath_rxbuf *rxbuf;
+	unsigned long flag;
 
-	spin_lock_bh(&rxtid->tidlock);
+	spin_lock_irqsave(&rxtid->tidlock, flag);
 	while (rxtid->baw_head != rxtid->baw_tail) {
 		rxbuf = rxtid->rxbuf + rxtid->baw_head;
 		if (!rxbuf->rx_wbuf) {
@@ -382,7 +383,7 @@
 		INCR(rxtid->baw_head, ATH_TID_MAX_BUFS);
 		INCR(rxtid->seq_next, IEEE80211_SEQ_MAX);
 	}
-	spin_unlock_bh(&rxtid->tidlock);
+	spin_unlock_irqrestore(&rxtid->tidlock, flag);
 }
 
 static struct sk_buff *ath_rxbuf_alloc(struct ath_softc *sc,