mac802154: fix memory leaks

kfree_skb() was not getting called in the case of some failures.
This was pointed out by Eric Dumazet.

Signed-off-by: Alan Ott <alan@signal11.us>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 1 deletions

diff --git a/net/mac802154/wpan.c b/net/mac802154/wpan.c
index f30f6d4beea1..1191039c2b1b 100644
--- a/net/mac802154/wpan.c
+++ b/net/mac802154/wpan.c
@@ -327,8 +327,10 @@ mac802154_wpan_xmit(struct sk_buff *skb, struct net_device *dev)
 
         if (chan == MAC802154_CHAN_NONE ||
             page >= WPAN_NUM_PAGES ||
-            chan >= WPAN_NUM_CHANNELS)
+            chan >= WPAN_NUM_CHANNELS) {
+                kfree_skb(skb);
                 return NETDEV_TX_OK;
+        }
 
         skb->skb_iif = dev->ifindex;
         dev->stats.tx_packets++;