diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c
index a263d5c..71f3eb6 100644
--- a/drivers/net/wireless/mwl8k.c
+++ b/drivers/net/wireless/mwl8k.c
@@ -1012,6 +1012,8 @@
 		rmb();
 
 		skb = rxq->rx_skb[rxq->rx_head];
+		if (skb == NULL)
+			break;
 		rxq->rx_skb[rxq->rx_head] = NULL;
 
 		rxq->rx_head = (rxq->rx_head + 1) % MWL8K_RX_DESCS;