netdev - [PATCH 1/2] net: check return value for dst

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Date:	Mon, 26 Sep 2011 20:04:36 +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 1/2] 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/xfrm/xfrm_policy.c |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 94fdcc7..552df27 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1349,14 +1349,16 @@ static inline struct xfrm_dst *xfrm_alloc_dst(struct net *net, int family)
 		BUG();
 	}
 	xdst = dst_alloc(dst_ops, NULL, 0, 0, 0);
-	memset(&xdst->u.rt6.rt6i_table, 0, sizeof(*xdst) - sizeof(struct dst_entry));
-	xfrm_policy_put_afinfo(afinfo);
 
-	if (likely(xdst))
+	if (likely(xdst)) {
+		memset(&xdst->u.rt6.rt6i_table, 0,
+			sizeof(*xdst) - sizeof(struct dst_entry));
 		xdst->flo.ops = &xfrm_bundle_fc_ops;
-	else
+	} else
 		xdst = ERR_PTR(-ENOBUFS);
 
+	xfrm_policy_put_afinfo(afinfo);
+
 	return xdst;
 }
 
-- 
1.7.0.1


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