netdev - [PATCH net-next] net: hns3: Check for allocation failure

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Date:   Fri, 1 Feb 2019 11:32:26 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Yisen Zhuang <yisen.zhuang@...wei.com>,
        liuzhongzhu <liuzhongzhu@...wei.com>
Cc:     Salil Mehta <salil.mehta@...wei.com>,
        "David S. Miller" <davem@...emloft.net>,
        Peng Li <lipeng321@...wei.com>,
        Jian Shen <shenjian15@...wei.com>,
        Huazhong Tan <tanhuazhong@...wei.com>,
        Yunsheng Lin <linyunsheng@...wei.com>,
        Fuyun Liang <liangfuyun1@...wei.com>, netdev@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: [PATCH net-next] net: hns3: Check for allocation failure

We should return -ENOMEM if the kcalloc() fails.

Fixes: d174ea75c96a ("net: hns3: add statistics for PFC frames and MAC control frame")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index ae8336c18264..afd9a0176923 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -343,6 +343,8 @@ static int hclge_mac_update_stats_complete(struct hclge_dev *hdev, u32 desc_num)
 	int ret;
 
 	desc = kcalloc(desc_num, sizeof(struct hclge_desc), GFP_KERNEL);
+	if (!desc)
+		return -ENOMEM;
 	hclge_cmd_setup_basic_desc(&desc[0], HCLGE_OPC_STATS_MAC_ALL, true);
 	ret = hclge_cmd_send(&hdev->hw, desc, desc_num);
 	if (ret) {
-- 
2.17.1