diff --git a/drivers/net/wan/lapbether.c b/drivers/net/wan/lapbether.c
index f357a7ac70ac4756967730fa61c07258b4b3ac00..dcc492551e05feba52f0248ae9a2f7856e7a5604 100644
--- a/drivers/net/wan/lapbether.c
+++ b/drivers/net/wan/lapbether.c
@@ -255,9 +255,13 @@ static void lapbeth_data_transmit(struct net_device *ndev, struct sk_buff *skb)
 
        skb_reset_network_header(skb);
 
-       dev_hard_header(skb, dev, ETH_P_DEC, bcast_addr, NULL, 0);
+       if (unlikely(dev->type != ARPHRD_ETHER)) {
+               kfree_skb(skb);
+       } else {
+               dev_hard_header(skb, dev, ETH_P_DEC, bcast_addr, NULL, 0);
 
-       dev_queue_xmit(skb);
+               dev_queue_xmit(skb);
+       }
 }
 
 static void lapbeth_connected(struct net_device *dev, int reason)