net/sun3_82586: fix potential memory leak in sun3_82586_send_packet()

The sun3_82586_send_packet() returns NETDEV_TX_OK without freeing skb
in case of skb->len being too long, add dev_kfree_skb() to fix it.

Fixes: 1da177e ("Linux-2.6.12-rc2")
Signed-off-by: Wang Hai <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Message-ID: <[email protected]>
Signed-off-by: Andrew Lunn <[email protected]>

Author: Wang Hai

drivers/net/ethernet/i825xx/sun3_82586.c

@@ -1012,6 +1012,7 @@ sun3_82586_send_packet(struct sk_buff *skb, struct net_device *dev)
 	if(skb->len > XMIT_BUFF_SIZE)
 	{
 		printk("%s: Sorry, max. framelength is %d bytes. The length of your frame is %d bytes.\n",dev->name,XMIT_BUFF_SIZE,skb->len);
+		dev_kfree_skb(skb);
 		return NETDEV_TX_OK;
 	}