2023-01-05 11:41:37

by Yang Yingliang

Subject: [PATCH -next] net/mlx5: fix missing mutex_unlock in mlx5_fw_fatal_reporter_err_work()

Add missing mutex_unlock() before returning from
mlx5_fw_fatal_reporter_err_work().

Fixes: 9078e843efec ("net/mlx5: Avoid recovery in probe flows")
Signed-off-by: Yang Yingliang <[email protected]>
---
drivers/net/ethernet/mellanox/mlx5/core/health.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/health.c b/drivers/net/ethernet/mellanox/mlx5/core/health.c
index 96417c5feed7..879555ba847d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/health.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/health.c
@@ -677,6 +677,7 @@ static void mlx5_fw_fatal_reporter_err_work(struct work_struct *work)
mutex_lock(&dev->intf_state_mutex);
if (test_bit(MLX5_DROP_NEW_HEALTH_WORK, &health->flags)) {
mlx5_core_err(dev, "health works are not permitted at this stage\n");
+ mutex_unlock(&dev->intf_state_mutex);
return;
}
mutex_unlock(&dev->intf_state_mutex);
--
2.25.1

2023-01-05 13:21:23

by Leon Romanovsky

Subject: Re: [PATCH -next] net/mlx5: fix missing mutex_unlock in mlx5_fw_fatal_reporter_err_work()

On Thu, Jan 05, 2023 at 07:42:20PM +0800, Yang Yingliang wrote:
> Add missing mutex_unlock() before returning from
> mlx5_fw_fatal_reporter_err_work().
>
> Fixes: 9078e843efec ("net/mlx5: Avoid recovery in probe flows")
> Signed-off-by: Yang Yingliang <[email protected]>
> ---
> drivers/net/ethernet/mellanox/mlx5/core/health.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/health.c b/drivers/net/ethernet/mellanox/mlx5/core/health.c
> index 96417c5feed7..879555ba847d 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/health.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/health.c
> @@ -677,6 +677,7 @@ static void mlx5_fw_fatal_reporter_err_work(struct work_struct *work)
> mutex_lock(&dev->intf_state_mutex);
> if (test_bit(MLX5_DROP_NEW_HEALTH_WORK, &health->flags)) {
> mlx5_core_err(dev, "health works are not permitted at this stage\n");
> + mutex_unlock(&dev->intf_state_mutex);
> return;
> }
> mutex_unlock(&dev->intf_state_mutex);

Shay is working to rewrite 9078e843efec ("net/mlx5: Avoid recovery in probe flows") completely.

Thanks

> --
> 2.25.1
>