netdev - [PATCH 2/2] net: check return value for dst

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Message-ID: <1317056696-23611-1-git-send-email-madalin.bucur@freescale.com>
Date:	Mon, 26 Sep 2011 20:04:56 +0300
From:	Madalin Bucur <madalin.bucur@...escale.com>
To:	<eric.dumazet@...il.com>
CC:	<netdev@...r.kernel.org>, <davem@...emloft.net>,
	<timo.teras@....fi>, Madalin Bucur <madalin.bucur@...escale.com>
Subject: [PATCH 2/2] net: check return value for dst_alloc

return value of dst_alloc must be checked before use

Signed-off-by: Madalin Bucur <madalin.bucur@...escale.com>
---
 net/ipv6/route.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 1250f90..fb545ed 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -244,7 +244,9 @@ static inline struct rt6_info *ip6_dst_alloc(struct dst_ops *ops,
 {
 	struct rt6_info *rt = dst_alloc(ops, dev, 0, 0, flags);
 
-	memset(&rt->rt6i_table, 0, sizeof(*rt) - sizeof(struct dst_entry));
+	if (rt != NULL)
+		memset(&rt->rt6i_table, 0,
+			sizeof(*rt) - sizeof(struct dst_entry));
 
 	return rt;
 }
-- 
1.7.0.1


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