From: David S. Miller <davem@davemloft.net>
Date: Wed, 8 Aug 2018 06:42:03 +0000 (-0700)
Subject: p54: Use skb_peek_tail() instead of direct head pointer accesses.
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=e3554197fc8fbb9656f62c18f9c9edd396394e16;p=openwrt%2Fstaging%2Fblogic.git

p54: Use skb_peek_tail() instead of direct head pointer accesses.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/wireless/intersil/p54/txrx.c b/drivers/net/wireless/intersil/p54/txrx.c
index 3a4214d362ff..790784568ad2 100644
--- a/drivers/net/wireless/intersil/p54/txrx.c
+++ b/drivers/net/wireless/intersil/p54/txrx.c
@@ -121,8 +121,8 @@ static int p54_assign_address(struct p54_common *priv, struct sk_buff *skb)
 	}
 	if (unlikely(!target_skb)) {
 		if (priv->rx_end - last_addr >= len) {
-			target_skb = priv->tx_queue.prev;
-			if (!skb_queue_empty(&priv->tx_queue)) {
+			target_skb = skb_peek_tail(&priv->tx_queue);
+			if (target_skb) {
 				info = IEEE80211_SKB_CB(target_skb);
 				range = (void *)info->rate_driver_data;
 				target_addr = range->end_addr;