From: David S. Miller <davem@davemloft.net>
Date: Fri, 13 May 2011 03:03:46 +0000 (-0400)
Subject: ipv4: Fix 'iph' use before set.
X-Git-Tag: v3.0-rc1~377^2~103
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=72a8f97bf2dfe1b0f02ba8dbaed7d6b76657aae3;p=karo-tx-linux.git

ipv4: Fix 'iph' use before set.

I swear none of my compilers warned about this, yet it is so
obvious.

> net/ipv4/ip_forward.c: In function 'ip_forward':
> net/ipv4/ip_forward.c:87: warning: 'iph' may be used uninitialized in this function

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c
index fcbc0c8f1261..3b34d1c86270 100644
--- a/net/ipv4/ip_forward.c
+++ b/net/ipv4/ip_forward.c
@@ -84,7 +84,7 @@ int ip_forward(struct sk_buff *skb)
 
 	rt = skb_rtable(skb);
 
-	if (opt->is_strictroute && iph->daddr != rt->rt_gateway)
+	if (opt->is_strictroute && ip_hdr(skb)->daddr != rt->rt_gateway)
 		goto sr_failed;
 
 	if (unlikely(skb->len > dst_mtu(&rt->dst) && !skb_is_gso(skb) &&