From: Dale Farnsworth <dale@farnsworth.org>
Date: Thu, 1 Sep 2005 16:59:23 +0000 (-0700)
Subject: [PATCH] mv643xx: fix skb memory leak
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=b1dd9ca177bd2ff5260376dd024dd43eb4631dc7;p=openwrt%2Fstaging%2Fblogic.git

[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: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
---

diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
index fb6b232069d6..ab74d4583c41 100644
--- a/drivers/net/mv643xx_eth.c
+++ b/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;