[PATCH 098/115] xfrm6: release dev before returning error

From: Luis Henriques
Date: Mon May 20 2013 - 06:58:12 EST -stable review patch. If anyone has any objections, please let me know.


From: Cong Wang <amwang@xxxxxxxxxx>

commit 84c4a9dfbf430861e7588d95ae3ff61535dca351 upstream.

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

Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Cc: Steffen Klassert <steffen.klassert@xxxxxxxxxxx>
Cc: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Cong Wang <amwang@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
net/ipv6/xfrm6_policy.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index 8625fba..1cfb9a4 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,

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)

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