From e39363a9def53dd4086be107dc8b3ebca09f045d Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Tue, 22 Jan 2013 17:39:11 +0000
Subject: [PATCH] netpoll: fix an uninitialized variable

Fengguang reported:

   net/core/netpoll.c: In function 'netpoll_setup':
   net/core/netpoll.c:1049:6: warning: 'err' may be used uninitialized in this function [-Wmaybe-uninitialized]

in !CONFIG_IPV6 case, we may error out without initializing
'err'.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/netpoll.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index a9b10048388..e2f79a14625 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -1140,6 +1140,7 @@ int netpoll_setup(struct netpoll *np)
 #else
 			np_err(np, "IPv6 is not supported %s, aborting\n",
 			       np->dev_name);
+			err = -EINVAL;
 			goto put;
 #endif
 		}
-- 
2.41.0