linux-kernel - [PATCH net-next 03/12] net: hns3: add error handling in hclge_ieee

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Message-ID: <20190126164921.3872-4-tanhuazhong@huawei.com>
Date:   Sun, 27 Jan 2019 00:49:12 +0800
From:   Huazhong Tan <tanhuazhong@...wei.com>
To:     <davem@...emloft.net>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <huangdaode@...ilicon.com>, <yisen.zhuang@...wei.com>,
        <salil.mehta@...wei.com>, <linuxarm@...wei.com>,
        Yunsheng Lin <linyunsheng@...wei.com>,
        Peng Li <lipeng321@...wei.com>,
        Huazhong Tan <tanhuazhong@...wei.com>
Subject: [PATCH net-next 03/12] net: hns3: add error handling in hclge_ieee_setets

From: Yunsheng Lin <linyunsheng@...wei.com>

Currently hclge_ieee_setets returns error directly when there is
error, which may cause netdev not up problem.

This patch adds some error handling when setting ETS configuration
fails.

Fixes: cacde272dd00 ("net: hns3: Add hclge_dcb module for the support of DCB feature")
Signed-off-by: Yunsheng Lin <linyunsheng@...wei.com>
Signed-off-by: Peng Li <lipeng321@...wei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@...wei.com>
---
 .../ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c    | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
index 3a4a54ee5204..90b566e8e454 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
@@ -232,12 +232,13 @@ static int hclge_ieee_setets(struct hnae3_handle *h, struct ieee_ets *ets)
 
 	ret = hclge_ieee_ets_to_tm_info(hdev, ets);
 	if (ret)
-		return ret;
+		goto err_out;
 
 	if (map_changed) {
 		ret = hclge_client_setup_tc(hdev);
 		if (ret)
-			return ret;
+			goto err_out;
+
 		ret = hclge_notify_client(hdev, HNAE3_INIT_CLIENT);
 		if (ret)
 			return ret;
@@ -248,6 +249,16 @@ static int hclge_ieee_setets(struct hnae3_handle *h, struct ieee_ets *ets)
 	}
 
 	return hclge_tm_dwrr_cfg(hdev);
+
+err_out:
+	if (!map_changed)
+		return ret;
+
+	if (hclge_notify_client(hdev, HNAE3_INIT_CLIENT))
+		return ret;
+
+	hclge_notify_client(hdev, HNAE3_UP_CLIENT);
+	return ret;
 }
 
 static int hclge_ieee_getpfc(struct hnae3_handle *h, struct ieee_pfc *pfc)
-- 
2.20.1