From a772dca9467f5875391dd32128798596c58efdb9 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Thu, 27 Jun 2019 15:36:09 +0800 Subject: [PATCH] net: hns3: fix dereference of ae_dev before it is null checked driver inclusion category: bugfix bugzilla: NA CVE: NA Pointer ae_dev is null checked however, prior to that it is dereferenced when assigned pointer ops. Fix this by assigning pointer ops after ae_dev has been null checked. Addresses-Coverity: ("Dereference before null check") Signed-off-by: Colin Ian King Signed-off-by: liweihang Reviewed-by: lipeng Reviewed-by: Yang Yingliang Signed-off-by: Yang Yingliang --- 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 3651ae830439..697312624c66 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -2035,13 +2035,14 @@ static pci_ers_result_t hns3_error_detected(struct pci_dev *pdev, static pci_ers_result_t hns3_slot_reset(struct pci_dev *pdev) { struct hnae3_ae_dev *ae_dev = pci_get_drvdata(pdev); - const struct hnae3_ae_ops *ops = ae_dev->ops; + const struct hnae3_ae_ops *ops; enum hnae3_reset_type reset_type; struct device *dev = &pdev->dev; if (!ae_dev || !ae_dev->ops) return PCI_ERS_RESULT_NONE; + ops = ae_dev->ops; /* request the reset */ if (ops->reset_event) { if (!ae_dev->override_pci_need_reset) { -- GitLab