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Date:   Wed, 18 Oct 2023 18:10:55 +0200
From:   Simon Horman <horms@kernel.org>
To:     Przemek Kitszel <przemyslaw.kitszel@intel.com>
Cc:     Jiri Pirko <jiri@resnulli.us>, netdev@vger.kernel.org,
        "David S . Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Shannon Nelson <shannon.nelson@amd.com>,
        Michael Chan <michael.chan@broadcom.com>,
        Cai Huoqing <cai.huoqing@linux.dev>,
        George Cherian <george.cherian@marvell.com>,
        Danielle Ratson <danieller@nvidia.com>,
        Moshe Shemesh <moshe@nvidia.com>,
        Saeed Mahameed <saeedm@nvidia.com>,
        Ariel Elior <aelior@marvell.com>,
        Manish Chopra <manishc@marvell.com>,
        Igor Russkikh <irusskikh@marvell.com>,
        Coiby Xu <coiby.xu@gmail.com>,
        Brett Creeley <brett.creeley@amd.com>,
        Sunil Goutham <sgoutham@marvell.com>,
        Linu Cherian <lcherian@marvell.com>,
        Geetha sowjanya <gakula@marvell.com>,
        Jerin Jacob <jerinj@marvell.com>,
        hariprasad <hkelam@marvell.com>,
        Subbaraya Sundeep <sbhatta@marvell.com>,
        Ido Schimmel <idosch@nvidia.com>,
        Petr Machata <petrm@nvidia.com>,
        Eran Ben Elisha <eranbe@nvidia.com>,
        Aya Levin <ayal@mellanox.com>,
        Leon Romanovsky <leon@kernel.org>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next v2 11/11] devlink: convert most of
 devlink_fmsg_*() to return void
Message-ID: <20231018161055.GU1940501@kernel.org>
References: <20231017105341.415466-1-przemyslaw.kitszel@intel.com>
 <20231017105341.415466-12-przemyslaw.kitszel@intel.com>
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In-Reply-To: <20231017105341.415466-12-przemyslaw.kitszel@intel.com>
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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;

...