linux-kernel - Re: [PATCH v2] ata: sata_mv: aspeed: fix value check in mv_platform

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Message-ID: <ZSQMqTos1/y0/eeC@x1-carbon>
Date:   Mon, 9 Oct 2023 14:22:37 +0000
From:   Niklas Cassel <Niklas.Cassel@....com>
To:     Ma Ke <make_ruc2021@....com>
CC:     "dlemoal@...nel.org" <dlemoal@...nel.org>,
        "linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] ata: sata_mv: aspeed: fix value check in
 mv_platform_probe()

On Mon, Oct 09, 2023 at 08:49:55PM +0800, Ma Ke wrote:
> In mv_platform_probe(), check the return value of clk_prepare_enable()
> and return the error code if clk_prepare_enable() returns an
> unexpected value.
> 
> Signed-off-by: Ma Ke <make_ruc2021@....com>
> ---
>  drivers/ata/sata_mv.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
> index 45e48d653c60..df3a02e7a50b 100644
> --- a/drivers/ata/sata_mv.c
> +++ b/drivers/ata/sata_mv.c
> @@ -4125,8 +4125,10 @@ static int mv_platform_probe(struct platform_device *pdev)
>  	hpriv->clk = clk_get(&pdev->dev, NULL);
>  	if (IS_ERR(hpriv->clk))
>  		dev_notice(&pdev->dev, "cannot get optional clkdev\n");
> -	else
> -		clk_prepare_enable(hpriv->clk);
> +	else {
> +		rc = clk_prepare_enable(hpriv->clk);
> +		goto err;
> +	}
>  
>  	for (port = 0; port < n_ports; port++) {
>  		char port_number[16];
> -- 
> 2.37.2
> 

Reviewed-by: Niklas Cassel <niklas.cassel@....com>