From 3dcb615e6841eb945a49f605743a6923ed591400 Mon Sep 17 00:00:00 2001
From: Roopa Prabhu <roopa@cumulusnetworks.com>
Date: Tue, 4 Aug 2015 06:36:24 -0700
Subject: af_mpls: add null dev check in find_outdev

This patch adds null dev check for the 'cfg->rc_via_table ==
NEIGH_LINK_TABLE or dev_get_by_index() failed' case

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/mpls/af_mpls.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'net/mpls')

diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c
index d93c0301ad23..04306989d054 100644
--- a/net/mpls/af_mpls.c
+++ b/net/mpls/af_mpls.c
@@ -411,6 +411,9 @@ static struct net_device *find_outdev(struct net *net,
 		dev = dev_get_by_index(net, cfg->rc_ifindex);
 	}
 
+	if (!dev)
+		return ERR_PTR(-ENODEV);
+
 	return dev;
 }
 
-- 
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