netdev - Re: [PATCH] net: mellanox: mlx5: fix error return code in mlx5_fpga_device

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Message-ID: <YESTu9lXAgvYaroG@unreal>
Date:   Sun, 7 Mar 2021 10:50:03 +0200
From:   Leon Romanovsky <leon@...nel.org>
To:     Jia-Ju Bai <baijiaju1990@...il.com>
Cc:     borisp@...dia.com, saeedm@...dia.com, davem@...emloft.net,
        kuba@...nel.org, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: mellanox: mlx5: fix error return code in
 mlx5_fpga_device_start()

On Thu, Mar 04, 2021 at 06:18:14AM -0800, Jia-Ju Bai wrote:
> When mlx5_is_fpga_lookaside() returns a non-zero value, no error
> return code is assigned.
> To fix this bug, err is assigned with -EINVAL as error return code.
>
> Reported-by: TOTE Robot <oslab@...nghua.edu.cn>
> Signed-off-by: Jia-Ju Bai <baijiaju1990@...il.com>
> ---
>  drivers/net/ethernet/mellanox/mlx5/core/fpga/core.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)

Like Heiner said, the current code has correct behavior.
The mlx5_fpga_device_load_check() has same mlx5_is_fpga_lookaside()
check and it is not an error if it returns true.

NAK: Leon Romanovsky <leonro@...dia.com>

Thanks