netdev - [PATCH] spidernet : fix memory leak in spider_net

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Message-Id: <200702011207.47421.jens@de.ibm.com>
Date:	Thu, 1 Feb 2007 12:07:47 +0100
From:	Jens Osterkamp <jens@...ibm.com>
To:	Linas Vepstas <linas@...tin.ibm.com>,
	James K Lewis <jim@...ewis.com>, linuxppc-dev@...abs.org,
	netdev@...r.kernel.org, jgarzik@...ox.com, cbe-oss-dev@...abs.org,
	Ishizaki Kou <kou.ishizaki@...hiba.co.jp>
Subject: [PATCH] spidernet : fix memory leak in spider_net_stop


We forget to call spider_net_free_rx_chain_contents which does the
actual dev_kfree_skb. New skbs are allocated from skbuff_head_cache
on each "ifconfig up" letting the cache grow infinitely.

This patch fixes it.

Signed-off-by: Jens Osterkamp <jens@...ibm.com>

Index: linux-2.6.20-rc6/drivers/net/spider_net.c
===================================================================
--- linux-2.6.20-rc6.orig/drivers/net/spider_net.c
+++ linux-2.6.20-rc6/drivers/net/spider_net.c
@@ -1925,6 +1925,8 @@ spider_net_stop(struct net_device *netde
 	/* release chains */
 	spider_net_release_tx_chain(card, 1);
 
+	spider_net_free_rx_chain_contents(card);
+
 	spider_net_free_chain(card, &card->tx_chain);
 	spider_net_free_chain(card, &card->rx_chain);
 
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