linux-kernel - Re: [RFC 40/42] arch/mips/lantiq/xway: don't check resource with devm_ioremap

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Message-ID: <518CB681.4030709@phrozen.org>
Date:	Fri, 10 May 2013 10:57:37 +0200
From:	John Crispin <john@...ozen.org>
To:	Wolfram Sang <wsa@...-dreams.de>
CC:	linux-kernel@...r.kernel.org, Ralf Baechle <ralf@...ux-mips.org>,
	linux-mips@...ux-mips.org
Subject: Re: [RFC 40/42] arch/mips/lantiq/xway: don't check resource with
 devm_ioremap_resource

On 10/05/13 10:17, Wolfram Sang wrote:
> devm_ioremap_resource does sanity checks on the given resource. No need to
> duplicate this in the driver.
>
> Signed-off-by: Wolfram Sang<wsa@...-dreams.de>

Acked-by: John Crispin <blogic@...nwrt.org>

> ---
>   arch/mips/lantiq/xway/gptu.c |    7 +------
>   1 file changed, 1 insertion(+), 6 deletions(-)
>
> diff --git a/arch/mips/lantiq/xway/gptu.c b/arch/mips/lantiq/xway/gptu.c
> index 9861c86..26226f0 100644
> --- a/arch/mips/lantiq/xway/gptu.c
> +++ b/arch/mips/lantiq/xway/gptu.c
> @@ -143,13 +143,8 @@ static int gptu_probe(struct platform_device *pdev)
>   		return -EINVAL;
>   	}
>
> -	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	if (!res) {
> -		dev_err(&pdev->dev, "Failed to get resource\n");
> -		return -ENOMEM;
> -	}
> -
>   	/* remap gptu register range */
> +	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>   	gptu_membase = devm_ioremap_resource(&pdev->dev, res);
>   	if (IS_ERR(gptu_membase))
>   		return PTR_ERR(gptu_membase);

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