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Subject[PATCH net-next 6/7] net: hns3: check NULL pointer before use
Date
From: Guangbin Huang <huangguangbin2@huawei.com>

This patch checks ops->set_default_reset_request whether is NULL
before using it in function hns3_slot_reset.

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 8dbaf36..616cad0 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -2006,7 +2006,8 @@ static pci_ers_result_t hns3_slot_reset(struct pci_dev *pdev)

ops = ae_dev->ops;
/* request the reset */
- if (ops->reset_event && ops->get_reset_level) {
+ if (ops->reset_event && ops->get_reset_level &&
+ ops->set_default_reset_request) {
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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