netdev - [PATCH] xt_tee: use skb_dst

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Date:	Fri, 28 May 2010 11:24:58 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev <netdev@...r.kernel.org>,
	Jan Engelhardt <jengelh@...ozas.de>
Subject: [PATCH] xt_tee: use skb_dst_drop()

After commit 7fee226a (net: add a noref bit on skb dst), its wrong to
use : dst_release(skb_dst(skb)), since we could decrement a refcount
while skb dst was not refcounted.

We should use skb_dst_drop(skb) instead.

Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>
---
 net/netfilter/xt_TEE.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/netfilter/xt_TEE.c b/net/netfilter/xt_TEE.c
index d7920d9..859d9fd 100644
--- a/net/netfilter/xt_TEE.c
+++ b/net/netfilter/xt_TEE.c
@@ -76,7 +76,7 @@ tee_tg_route4(struct sk_buff *skb, const struct xt_tee_tginfo *info)
 	if (ip_route_output_key(net, &rt, &fl) != 0)
 		return false;
 
-	dst_release(skb_dst(skb));
+	skb_dst_drop(skb);
 	skb_dst_set(skb, &rt->u.dst);
 	skb->dev      = rt->u.dst.dev;
 	skb->protocol = htons(ETH_P_IP);
@@ -157,7 +157,7 @@ tee_tg_route6(struct sk_buff *skb, const struct xt_tee_tginfo *info)
 	if (dst == NULL)
 		return false;
 
-	dst_release(skb_dst(skb));
+	skb_dst_drop(skb);
 	skb_dst_set(skb, dst);
 	skb->dev      = dst->dev;
 	skb->protocol = htons(ETH_P_IPV6);


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