[PATCH 4.19 145/422] failover: Fix error return code in net_failover_create

[Greg Kroah-Hartman]

From: YueHaibing <yuehaibing@xxxxxxxxxx>

[ 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@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 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