[PATCH] mv643xx: fix skb memory leak

This patch fixes an skb memory leak under heavy receive load
(whenever the more packets have been received than the NAPI budget
allows to be processed).
Signed-off-by: NDale Farnsworth <dale@farnsworth.org>
Signed-off-by: NJeff Garzik <jgarzik@pobox.com>

drivers/net/mv643xx_eth.c

@@ -412,15 +412,13 @@ static int mv643xx_eth_receive_queue(struct net_device *dev)
 	struct pkt_info pkt_info;
 
 #ifdef MV643XX_NAPI
-	while (eth_port_receive(mp, &pkt_info) == ETH_OK && budget > 0) {
+	while (budget-- > 0 && eth_port_receive(mp, &pkt_info) == ETH_OK) {
 #else
 	while (eth_port_receive(mp, &pkt_info) == ETH_OK) {
 #endif
 		mp->rx_ring_skbs--;
 		received_packets++;
-#ifdef MV643XX_NAPI
-		budget--;
-#endif
+
 		/* Update statistics. Note byte count includes 4 byte CRC count */
 		stats->rx_packets++;
 		stats->rx_bytes += pkt_info.byte_cnt;