4.18-stable review patch. If anyone has any objections, please let me know.
------------------
From: Huazhong Tan <tanhuazhong@xxxxxxxxxx>
[ Upstream commit 6d4fab39533f1bcd933d82d1667ceea93e4de260 ]
Since current locking was not covering certain code where
netdev was being accessed or manipulated, this patch fixes
it.
Signed-off-by: Huazhong Tan <tanhuazhong@xxxxxxxxxx>
Signed-off-by: Peng Li <lipeng321@xxxxxxxxxx>
Signed-off-by: Salil Mehta <salil.mehta@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -2825,15 +2825,13 @@ static void hclge_clear_reset_cause(stru
static void hclge_reset(struct hclge_dev *hdev)
{
/* perform reset of the stack & ae device for a client */
-
+ rtnl_lock();
hclge_notify_client(hdev, HNAE3_DOWN_CLIENT);
if (!hclge_reset_wait(hdev)) {
- rtnl_lock();
hclge_notify_client(hdev, HNAE3_UNINIT_CLIENT);
hclge_reset_ae_dev(hdev->ae_dev);
hclge_notify_client(hdev, HNAE3_INIT_CLIENT);
- rtnl_unlock();
hclge_clear_reset_cause(hdev);
} else {
@@ -2843,6 +2841,7 @@ static void hclge_reset(struct hclge_dev
}
hclge_notify_client(hdev, HNAE3_UP_CLIENT);
+ rtnl_unlock();
}
static void hclge_reset_event(struct hnae3_handle *handle)
