mac802154: common error path

By introducing label fail, making the common error path for
mac802154_llsec_decrypt() and packet type default case.

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 6 insertions, 4 deletions

diff --git a/net/mac802154/wpan.c b/net/mac802154/wpan.c
index 3c3069fd6971..ce1757001917 100644
--- a/net/mac802154/wpan.c
+++ b/net/mac802154/wpan.c
@@ -472,8 +472,7 @@ mac802154_subif_frame(struct mac802154_sub_if_data *sdata, struct sk_buff *skb,
         rc = mac802154_llsec_decrypt(&sdata->sec, skb);
         if (rc) {
                 pr_debug("decryption failed: %i\n", rc);
-                kfree_skb(skb);
-                return NET_RX_DROP;
+                goto fail;
         }
 
         sdata->dev->stats.rx_packets++;
@@ -485,9 +484,12 @@ mac802154_subif_frame(struct mac802154_sub_if_data *sdata, struct sk_buff *skb,
         default:
                 pr_warn("ieee802154: bad frame received (type = %d)\n",
                         mac_cb(skb)->type);
-                kfree_skb(skb);
-                return NET_RX_DROP;
+                goto fail;
         }
+
+fail:
+        kfree_skb(skb);
+        return NET_RX_DROP;
 }
 
 static void mac802154_print_addr(const char *name,