mac80211: use kfree_skb() to free struct sk_buff pointers

kfree_skb() should be used to free struct sk_buff pointers.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index dd65643..aeb65b3 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -339,7 +339,7 @@
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 
 	if (WARN_ON(!info->control.vif)) {
-		kfree(skb);
+		kfree_skb(skb);
 		return;
 	}
 
@@ -367,7 +367,7 @@
 		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 
 		if (WARN_ON(!info->control.vif)) {
-			kfree(skb);
+			kfree_skb(skb);
 			continue;
 		}