linux-kernel - Re: [PATCH 01/16] soc: imx: gpcv2: move to more ideomatic error handling in probe

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Date:   Mon, 3 May 2021 15:26:54 +0200
From:   Frieder Schrempf <frieder.schrempf@...tron.de>
To:     "Peng Fan (OSS)" <peng.fan@....nxp.com>, robh+dt@...nel.org,
        shawnguo@...nel.org, s.hauer@...gutronix.de
Cc:     kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
        p.zabel@...gutronix.de, l.stach@...gutronix.de, krzk@...nel.org,
        agx@...xcpu.org, marex@...x.de, andrew.smirnov@...il.com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, ping.bai@....com, aford173@...il.com,
        abel.vesa@....com
Subject: Re: [PATCH 01/16] soc: imx: gpcv2: move to more ideomatic error
 handling in probe

On 29.04.21 09:30, Peng Fan (OSS) wrote:
> From: Lucas Stach <l.stach@...gutronix.de>
> 
> Switch to "goto out..." error handling in domain driver probe to
> avoid repeating all the error paths.
> 
> Signed-off-by: Lucas Stach <l.stach@...gutronix.de>
> Reviewed-by: Marek Vasut <marex@...x.de>
> Tested-by: Adam Ford <aford173@...il.com>

Reviewed-by: Frieder Schrempf <frieder.schrempf@...tron.de>

> ---
>   drivers/soc/imx/gpcv2.c | 13 +++++++++----
>   1 file changed, 9 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/soc/imx/gpcv2.c b/drivers/soc/imx/gpcv2.c
> index db7e7fc321b1..512e6f4acafd 100644
> --- a/drivers/soc/imx/gpcv2.c
> +++ b/drivers/soc/imx/gpcv2.c
> @@ -502,18 +502,23 @@ static int imx_pgc_domain_probe(struct platform_device *pdev)
>   	ret = pm_genpd_init(&domain->genpd, NULL, true);
>   	if (ret) {
>   		dev_err(domain->dev, "Failed to init power domain\n");
> -		imx_pgc_put_clocks(domain);
> -		return ret;
> +		goto out_put_clocks;
>   	}
>   
>   	ret = of_genpd_add_provider_simple(domain->dev->of_node,
>   					   &domain->genpd);
>   	if (ret) {
>   		dev_err(domain->dev, "Failed to add genpd provider\n");
> -		pm_genpd_remove(&domain->genpd);
> -		imx_pgc_put_clocks(domain);
> +		goto out_genpd_remove;
>   	}
>   
> +	return 0;
> +
> +out_genpd_remove:
> +	pm_genpd_remove(&domain->genpd);
> +out_put_clocks:
> +	imx_pgc_put_clocks(domain);
> +
>   	return ret;
>   }
>   
>