[43/65] xfrm6: release dev before returning error

[Steven Rostedt]

3.6.11.5 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Cong Wang <amwang@xxxxxxxxxx>

[ Upstream commit 84c4a9dfbf430861e7588d95ae3ff61535dca351 ]

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: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
 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 bf6912e..a11f96c 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -103,8 +103,10 @@ 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;
+	}
 
 	rt6_transfer_peer(&xdst->u.rt6, rt);
 
-- 
1.7.10.4


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