net: hns3: fix mis-assignment to hdev->reset_level in hclge_reset

Since hclge_get_reset_level may return HNAE3_NONE_RESET, so hdev->reset_level can not be assigned with the return value in the hclge_reset(), otherwise, it will cause the use of hdev->reset_level in hclge_reset_event get into error. Fixes: 012fcb5 ("net: hns3: activate reset timer when calling reset_event") Signed-off-by: Huazhong Tan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
chewitt · Sep 6, 2019 · 525a294 · 525a294
1 parent 323a2ac
commit 525a294
Showing 1 changed file with 5 additions and 4 deletions.
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -3619,6 +3619,7 @@ static int hclge_reset_stack(struct hclge_dev *hdev)
 static void hclge_reset(struct hclge_dev *hdev)
 {
 	struct hnae3_ae_dev *ae_dev = pci_get_drvdata(hdev->pdev);
+	enum hnae3_reset_type reset_level;
 	int ret;
 
 	/* Initialize ae_dev reset status as well, in case enet layer wants to
@@ -3697,10 +3698,10 @@ static void hclge_reset(struct hclge_dev *hdev)
 	 * it should be handled as soon as possible. since some errors
 	 * need this kind of reset to fix.
 	 */
-	hdev->reset_level = hclge_get_reset_level(ae_dev,
-						  &hdev->default_reset_request);
-	if (hdev->reset_level != HNAE3_NONE_RESET)
-		set_bit(hdev->reset_level, &hdev->reset_request);
+	reset_level = hclge_get_reset_level(ae_dev,
+					    &hdev->default_reset_request);
+	if (reset_level != HNAE3_NONE_RESET)
+		set_bit(reset_level, &hdev->reset_request);
 
 	return;