From: Cong Wang <amwang@redhat.com>
Date: Thu, 9 May 2013 22:40:00 +0000 (+0000)
Subject: xfrm6: release dev before returning error
X-Git-Tag: v3.0.79~10
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a7e22d0c0e81dde129a51ee413644124f4b59954;p=thirdparty%2Fkernel%2Fstable.git

xfrm6: release dev before returning error

[ Upstream commit 84c4a9dfbf430861e7588d95ae3ff61535dca351 ]

We forget to call dev_put() on error path in xfrm6_fill_dst(),
its caller doesn't handle this.

Signed-off-by: Cong Wang <amwang@redhat.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index d879f7efbd10b..db78e7d874d7d 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -96,8 +96,10 @@ static int xfrm6_fill_dst(struct xfrm_dst *xdst, struct net_device *dev,
 	dev_hold(dev);
 
 	xdst->u.rt6.rt6i_idev = in6_dev_get(dev);
-	if (!xdst->u.rt6.rt6i_idev)
+	if (!xdst->u.rt6.rt6i_idev) {
+		dev_put(dev);
 		return -ENODEV;
+	}
 
 	xdst->u.rt6.rt6i_peer = rt->rt6i_peer;
 	if (rt->rt6i_peer)