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rtnetlink: Fix missing error code in rtnl_bridge_notify() 

[ Upstream commit a8db57c1d285c758adc7fb43d6e2bad2554106e1 ]

The error code is missing in this code scenario, add the error code
'-EINVAL' to the return value 'err'.

Eliminate the follow smatch warning:

net/core/rtnetlink.c:4834 rtnl_bridge_notify() warn: missing error code
'err'.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jiapeng Chong 2021-06-02 18:15:04 +08:00 committed by Greg Kroah-Hartman
parent 12fa0fdbcd
commit 107140952e
1 changed files with 3 additions and 1 deletions
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4
net/core/rtnetlink.c
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@ -4535,8 +4535,10 @@ static int rtnl_bridge_notify(struct net_device *dev)
if (err < 0)
goto errout;
if (!skb->len)
if (!skb->len) {
err = -EINVAL;
goto errout;
}
rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
return 0;