linux-kernel - [PATCH 4.19 145/422] failover: Fix error return code in net_failover

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Message-Id: <20191119051408.102485521@linuxfoundation.org>
Date:   Tue, 19 Nov 2019 06:15:42 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, YueHaibing <yuehaibing@...wei.com>,
        "David S. Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 145/422] failover: Fix error return code in net_failover_create

From: YueHaibing <yuehaibing@...wei.com>

[ Upstream commit 09317da317e55e70ccbe23f65008348a4a1b7c7f ]

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

Fixes: cfc80d9a1163 ("net: Introduce net_failover driver")
Signed-off-by: YueHaibing <yuehaibing@...wei.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 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 5a749dc25bec4..beeb7eb76ca32 100644
--- a/drivers/net/net_failover.c
+++ b/drivers/net/net_failover.c
@@ -765,8 +765,10 @@ 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;
 
-- 
2.20.1