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Message-ID: <1564127490-22173-3-git-send-email-tanhuazhong@huawei.com>
Date:   Fri, 26 Jul 2019 15:51:22 +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>, <saeedm@...lanox.com>,
        Guangbin Huang <huangguangbin@...wei.com>,
        "Huazhong Tan" <tanhuazhong@...wei.com>
Subject: [PATCH V2 net-next 02/10] net: hns3: add a check for get_reset_level

From: Guangbin Huang <huangguangbin@...wei.com>

For some cases, ops->get_reset_level may not be implemented, so we
should check whether it is NULL before calling get_reset_level.

Signed-off-by: Guangbin Huang <huangguangbin@...wei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@...wei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 08af782..4d58c53 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -1963,7 +1963,7 @@ static pci_ers_result_t hns3_slot_reset(struct pci_dev *pdev)
 
 	ops = ae_dev->ops;
 	/* request the reset */
-	if (ops->reset_event) {
+	if (ops->reset_event && ops->get_reset_level) {
 		if (ae_dev->hw_err_reset_req) {
 			reset_type = ops->get_reset_level(ae_dev,
 						&ae_dev->hw_err_reset_req);
-- 
2.7.4

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