linux-kernel - Re: [PATCH] nvme: Fix missing error code in nvme_configure

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Date:   Tue, 15 Feb 2022 07:22:11 +0100
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     Keith Busch <kbusch@...nel.org>,
        Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Cc:     axboe@...com, hch@....de, sagi@...mberg.me,
        linux-nvme@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Abaci Robot <abaci@...ux.alibaba.com>
Subject: Re: [PATCH] nvme: Fix missing error code in
 nvme_configure_directives()

Le 15/02/2022 à 04:55, Keith Busch a écrit :
> On Tue, Feb 15, 2022 at 11:36:32AM +0800, Jiapeng Chong wrote:
>> The error code is missing in this code scenario, add the error code
>> '-EINVAL' to the return value 'ret'.
>>
>> Eliminate the follow smatch warning:
>>
>> drivers/nvme/host/core.c:780 nvme_configure_directives() warn: missing
>> error code 'ret'.
> 
> Nak, the code is correct as-is, just like it was the previous time you
> posted this patch:
> 
>    http://lists.infradead.org/pipermail/linux-nvme/2021-September/027339.html
> 

Hi,

maybe an explicit 'ret = 0;' (and eventually a comment saying why) would 
help here?

The code really looks like an error handling path (and will keep getting 
some patches for it because of bots).

Just my 2c.

CJ