linux-kernel - Re: [PATCH net-next v2 11/11] devlink: convert most of devlink_fmsg

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20231018161055.GU1940501@kernel.org>
Date:   Wed, 18 Oct 2023 18:10:55 +0200
From:   Simon Horman <horms@...nel.org>
To:     Przemek Kitszel <przemyslaw.kitszel@...el.com>
Cc:     Jiri Pirko <jiri@...nulli.us>, netdev@...r.kernel.org,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Shannon Nelson <shannon.nelson@....com>,
        Michael Chan <michael.chan@...adcom.com>,
        Cai Huoqing <cai.huoqing@...ux.dev>,
        George Cherian <george.cherian@...vell.com>,
        Danielle Ratson <danieller@...dia.com>,
        Moshe Shemesh <moshe@...dia.com>,
        Saeed Mahameed <saeedm@...dia.com>,
        Ariel Elior <aelior@...vell.com>,
        Manish Chopra <manishc@...vell.com>,
        Igor Russkikh <irusskikh@...vell.com>,
        Coiby Xu <coiby.xu@...il.com>,
        Brett Creeley <brett.creeley@....com>,
        Sunil Goutham <sgoutham@...vell.com>,
        Linu Cherian <lcherian@...vell.com>,
        Geetha sowjanya <gakula@...vell.com>,
        Jerin Jacob <jerinj@...vell.com>,
        hariprasad <hkelam@...vell.com>,
        Subbaraya Sundeep <sbhatta@...vell.com>,
        Ido Schimmel <idosch@...dia.com>,
        Petr Machata <petrm@...dia.com>,
        Eran Ben Elisha <eranbe@...dia.com>,
        Aya Levin <ayal@...lanox.com>,
        Leon Romanovsky <leon@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next v2 11/11] devlink: convert most of
 devlink_fmsg_*() to return void

On Tue, Oct 17, 2023 at 12:53:41PM +0200, Przemek Kitszel wrote:

...

> diff --git a/net/devlink/health.c b/net/devlink/health.c
> index 3858a436598e..f4a6de576b6c 100644
> --- a/net/devlink/health.c
> +++ b/net/devlink/health.c
> @@ -566,17 +566,15 @@ static int devlink_health_do_dump(struct devlink_health_reporter *reporter,
>  	if (!reporter->dump_fmsg)
>  		return -ENOMEM;
>  
> -	err = devlink_fmsg_obj_nest_start(reporter->dump_fmsg);
> -	if (err)
> -		goto dump_err;
> +	devlink_fmsg_obj_nest_start(reporter->dump_fmsg);
>  
>  	err = reporter->ops->dump(reporter, reporter->dump_fmsg,
>  				  priv_ctx, extack);
>  	if (err)
>  		goto dump_err;
>  
> -	err = devlink_fmsg_obj_nest_end(reporter->dump_fmsg);
> -	if (err)
> +	devlink_fmsg_obj_nest_end(reporter->dump_fmsg);
> +	if (reporter->dump_fmsg->err)

Hi Przemek,

Smatch warns that err is not set to an error value here.

>  		goto dump_err;
>  
>  	reporter->dump_ts = jiffies;

...