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| author | Huazhong Tan <tanhuazhong@huawei.com> | 2018-10-30 21:50:52 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-10-31 12:42:38 -0700 |
| commit | a963052e539887df481d4d3a6ad4c92ca6461852 (patch) | |
| tree | ed4f4fc0d87f4afff6cb7a757b1bcf2cd49f5c65 /drivers/net | |
| parent | 3c88ed1d798da355859ca083d3884a16ce0841f2 (diff) | |
| download | linux-stable-a963052e539887df481d4d3a6ad4c92ca6461852.tar.gz linux-stable-a963052e539887df481d4d3a6ad4c92ca6461852.tar.bz2 linux-stable-a963052e539887df481d4d3a6ad4c92ca6461852.zip | |
net: hns3: bugfix for rtnl_lock's range in the hclge_reset()
Since hclge_reset_wait() is used to wait for the hardware to complete
the reset, it is not necessary to hold the rtnl_lock during
hclge_reset_wait(). So this patch releases the lock for the duration
of hclge_reset_wait().
Fixes: 6d4fab39533f ("net: hns3: Reset net device with rtnl_lock")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index f3212c96bb64..ffdd96020860 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -2470,14 +2470,17 @@ static void hclge_reset(struct hclge_dev *hdev) handle = &hdev->vport[0].nic; rtnl_lock(); hclge_notify_client(hdev, HNAE3_DOWN_CLIENT); + rtnl_unlock(); 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); hclge_clear_reset_cause(hdev); } else { + rtnl_lock(); /* schedule again to check pending resets later */ set_bit(hdev->reset_type, &hdev->reset_pending); hclge_reset_task_schedule(hdev); |