netdev - Re: [PATCH v2] net/mlx5: Replace kfree with kvfree

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Date:   Thu, 18 Jul 2019 18:38:34 +0000
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "hslester96@...il.com" <hslester96@...il.com>
CC:     "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "leon@...nel.org" <leon@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] net/mlx5: Replace kfree with kvfree

On Wed, 2019-07-17 at 18:14 +0800, Chuhong Yuan wrote:
> Variable allocated by kvmalloc should not be freed by kfree.
> Because it may be allocated by vmalloc.
> So replace kfree with kvfree here.
> 
> Fixes: 9b1f298236057 ("net/mlx5: Add support for FW fatal reporter
> dump")
> Signed-off-by: Chuhong Yuan <hslester96@...il.com>

Acked-by: Saeed Mahameed <saeedm@...lanox.com>

Dave, i guess this can go to net.

Thanks,
Saeed.

> ---
> Changes in v2:
>   - Add corresponding Fixes tag
> 
>  drivers/net/ethernet/mellanox/mlx5/core/health.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/health.c
> b/drivers/net/ethernet/mellanox/mlx5/core/health.c
> index 2fe6923f7ce0..9314777d99e3 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/health.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/health.c
> @@ -597,7 +597,7 @@ mlx5_fw_fatal_reporter_dump(struct
> devlink_health_reporter *reporter,
>  	err = devlink_fmsg_arr_pair_nest_end(fmsg);
>  
>  free_data:
> -	kfree(cr_data);
> +	kvfree(cr_data);
>  	return err;
>  }
>