linux-kernel - Re: [PATCH] clk / soc: mediatek: fix ptr

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Message-ID: <5ca9a334-31d7-8878-f586-13d5020c24fc@collabora.com>
Date:   Sun, 10 May 2020 12:07:40 +0200
From:   Enric Balletbo i Serra <enric.balletbo@...labora.com>
To:     kbuild test robot <lkp@...el.com>,
        Matthias Brugger <mbrugger@...e.com>
Cc:     kbuild-all@...ts.01.org, CK Hu <ck.hu@...iatek.com>,
        Stephen Boyd <sboyd@...nel.org>,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] clk / soc: mediatek: fix ptr_ret.cocci warnings



On 10/5/20 4:53, kbuild test robot wrote:
> From: kbuild test robot <lkp@...el.com>
> 
> drivers/soc/mediatek/mtk-mmsys.c:28:1-3: WARNING: PTR_ERR_OR_ZERO can be used
> 
> 
>  Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
> 
> Generated by: scripts/coccinelle/api/ptr_ret.cocci
> 
> Fixes: 13032709e232 ("clk / soc: mediatek: Move mt8173 MMSYS to platform driver")
> CC: Matthias Brugger <mbrugger@...e.com>
> Signed-off-by: kbuild test robot <lkp@...el.com>

Reviewed-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>

> ---
> 
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> head:   30e2206e11ce27ae910cc0dab21472429e400a87
> commit: 13032709e2328553970f0002df5edce6aac69425 [1266/7905] clk / soc: mediatek: Move mt8173 MMSYS to platform driver
> 
>  mtk-mmsys.c |    5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> --- a/drivers/soc/mediatek/mtk-mmsys.c
> +++ b/drivers/soc/mediatek/mtk-mmsys.c
> @@ -25,10 +25,7 @@ static int mtk_mmsys_probe(struct platfo
>  
>  	clks = platform_device_register_data(&pdev->dev, data->clk_driver,
>  					     PLATFORM_DEVID_AUTO, NULL, 0);
> -	if (IS_ERR(clks))
> -		return PTR_ERR(clks);
> -
> -	return 0;
> +	return PTR_ERR_OR_ZERO(clks);
>  }
>  
>  static const struct of_device_id of_match_mtk_mmsys[] = {
>