linux-kernel - [Patch net-next 12/12] net: hns3: fix improper error handling for hns3_client

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Message-ID: <1550913739-13232-13-git-send-email-tanhuazhong@huawei.com>
Date:   Sat, 23 Feb 2019 17:22:19 +0800
From:   Huazhong Tan <tanhuazhong@...wei.com>
To:     <davem@...emloft.net>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <salil.mehta@...wei.com>, <yisen.zhuang@...wei.com>,
        <linuxarm@...wei.com>, Huazhong Tan <tanhuazhong@...wei.com>,
        Peng Li <lipeng321@...wei.com>
Subject: [Patch net-next 12/12] net: hns3: fix improper error handling for hns3_client_start

If hns3_client_start() failed in the hns3_client_init(),
register_dev() should be undo in its error handling.

Fixes: a6d818e31d08 ("net: hns3: Add vport alive state checking support")
Signed-off-by: Huazhong Tan <tanhuazhong@...wei.com>
Signed-off-by: Peng Li <lipeng321@...wei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 9f9a52d..3cb43b1 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -3656,7 +3656,7 @@ static int hns3_client_init(struct hnae3_handle *handle)
 	ret = hns3_client_start(handle);
 	if (ret) {
 		dev_err(priv->dev, "hns3_client_start fail! ret=%d\n", ret);
-			goto out_reg_netdev_fail;
+			goto out_client_start;
 	}
 
 	hns3_dcbnl_setup(handle);
@@ -3670,6 +3670,8 @@ static int hns3_client_init(struct hnae3_handle *handle)
 
 	return ret;
 
+out_client_start:
+	unregister_netdev(netdev);
 out_reg_netdev_fail:
 	hns3_uninit_phy(netdev);
 out_init_phy:
-- 
2.7.4