linux-kernel - [PATCH net-next] failover: Fix error return code in net_failover

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Date:   Thu, 6 Sep 2018 21:04:12 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <davem@...emloft.net>, <alexander.h.duyck@...el.com>,
        <jeffrey.t.kirsher@...el.com>, <liran.alon@...cle.com>,
        <sridhar.samudrala@...el.com>, <stephen@...workplumber.org>,
        <dan.carpenter@...cle.com>
CC:     <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
        YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH net-next] failover: Fix error return code in net_failover_create

if failover_register failed, 'err' code should be set correctly

Fixes: cfc80d9a1163 ("net: Introduce net_failover driver")
Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 drivers/net/net_failover.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/net_failover.c b/drivers/net/net_failover.c
index 192ae1c..cbcb9f2 100644
--- a/drivers/net/net_failover.c
+++ b/drivers/net/net_failover.c
@@ -761,8 +761,10 @@ struct failover *net_failover_create(struct net_device *standby_dev)
 	netif_carrier_off(failover_dev);
 
 	failover = failover_register(failover_dev, &net_failover_ops);
-	if (IS_ERR(failover))
+	if (IS_ERR(failover)) {
+		err = PTR_ERR(failover);
 		goto err_failover_register;
+	}
 
 	return failover;
 
-- 
2.7.0