linux-kernel - Re: [PATCH] net: ethernet: mellanox: return errno instead of 1

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Date:   Thu, 23 Dec 2021 11:34:55 -0800
From:   Saeed Mahameed <saeed.kernel@...il.com>
To:     Qing Wang <wangqing@...o.com>, Saeed Mahameed <saeedm@...dia.com>,
        Leon Romanovsky <leon@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: ethernet: mellanox: return errno instead of 1

On Wed, 2021-12-22 at 18:24 -0800, Qing Wang wrote:
> From: Wang Qing <wangqing@...o.com>
> 
> mlx5e_hv_vhca_stats_create() better return specific error than 1
> 
> Signed-off-by: Wang Qing <wangqing@...o.com>
> ---
>  drivers/net/ethernet/mellanox/mlx5/core/en/hv_vhca_stats.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git
> a/drivers/net/ethernet/mellanox/mlx5/core/en/hv_vhca_stats.c
> b/drivers/net/ethernet/mellanox/mlx5/core/en/hv_vhca_stats.c
> index d290d72..04cda3d
> --- a/drivers/net/ethernet/mellanox/mlx5/core/en/hv_vhca_stats.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/hv_vhca_stats.c
> @@ -142,7 +142,7 @@ int mlx5e_hv_vhca_stats_create(struct mlx5e_priv
> *priv)
>                                     PTR_ERR(agent));
>  
>                 kvfree(priv->stats_agent.buf);
> -               return IS_ERR_OR_NULL(agent);
> +               return agent ? PTR_ERR(agent) : -ENODEV;

the single caller of this function ignores the return value,
I just made a patch to void the return value and added you as Reported-
by.

Thanks !