linux-kernel - Re: [PATCH v10 1/2] mmc : sdhci-of-dwcmshc : add error handling in dwcmshc

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Date:   Thu, 24 Aug 2023 10:25:42 +0300
From:   Adrian Hunter <adrian.hunter@...el.com>
To:     Liming Sun <limings@...dia.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        David Thompson <davthompson@...dia.com>,
        Shawn Lin <shawn.lin@...k-chips.com>
Cc:     linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v10 1/2] mmc : sdhci-of-dwcmshc : add error handling in
 dwcmshc_resume

On 22/08/23 22:59, Liming Sun wrote:
> This commit adds handling in dwcmshc_resume() for different error
> cases.
> 
> Signed-off-by: Liming Sun <limings@...dia.com>

We don't put a space before ":" in the subject line, and usually
capitalize after that i.e.

mmc: sdhci-of-dwcmshc: Add error handling in dwcmshc_resume()

Otherwise:

Acked-by: Adrian Hunter <adrian.hunter@...el.com>


> ---
>  drivers/mmc/host/sdhci-of-dwcmshc.c | 21 ++++++++++++++++++---
>  1 file changed, 18 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/mmc/host/sdhci-of-dwcmshc.c b/drivers/mmc/host/sdhci-of-dwcmshc.c
> index 31c1892f4ecd..bc332a035032 100644
> --- a/drivers/mmc/host/sdhci-of-dwcmshc.c
> +++ b/drivers/mmc/host/sdhci-of-dwcmshc.c
> @@ -630,17 +630,32 @@ static int dwcmshc_resume(struct device *dev)
>  	if (!IS_ERR(priv->bus_clk)) {
>  		ret = clk_prepare_enable(priv->bus_clk);
>  		if (ret)
> -			return ret;
> +			goto disable_clk;
>  	}
>  
>  	if (rk_priv) {
>  		ret = clk_bulk_prepare_enable(RK35xx_MAX_CLKS,
>  					      rk_priv->rockchip_clks);
>  		if (ret)
> -			return ret;
> +			goto disable_bus_clk;
>  	}
>  
> -	return sdhci_resume_host(host);
> +	ret = sdhci_resume_host(host);
> +	if (ret)
> +		goto disable_rockchip_clks;
> +
> +	return 0;
> +
> +disable_rockchip_clks:
> +	if (rk_priv)
> +		clk_bulk_disable_unprepare(RK35xx_MAX_CLKS,
> +					   rk_priv->rockchip_clks);
> +disable_bus_clk:
> +	if (!IS_ERR(priv->bus_clk))
> +		clk_disable_unprepare(priv->bus_clk);
> +disable_clk:
> +	clk_disable_unprepare(pltfm_host->clk);
> +	return ret;
>  }
>  #endif
>