linux-kernel - Re: [PATCH] drivers: net: can: grcan: use devm_ioremap

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Date:	Tue, 14 May 2013 10:49:32 +0200
From:	Andreas Larsson <andreas@...sler.com>
To:	Laurent Navet <laurent.navet@...il.com>
CC:	wg@...ndegger.com, mkl@...gutronix.de, linux-can@...r.kernel.org,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drivers: net: can: grcan: use devm_ioremap_resource()

On 2013-05-13 17:27, Laurent Navet wrote:
> Replace a call to deprecated devm_request_and_ioremap by devm_ioremap_resource.
> dev_err() message is no more needed since it's already displayed in
> devm_ioremap_resource().
>
> Signed-off-by: Laurent Navet <laurent.navet@...il.com>
> ---
>   drivers/net/can/grcan.c |    7 +++----
>   1 file changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/net/can/grcan.c b/drivers/net/can/grcan.c
> index 17fbc7a..9e9d0d6 100644
> --- a/drivers/net/can/grcan.c
> +++ b/drivers/net/can/grcan.c
> @@ -1683,10 +1683,9 @@ static int grcan_probe(struct platform_device *ofdev)
>   	}
>
>   	res = platform_get_resource(ofdev, IORESOURCE_MEM, 0);
> -	base = devm_request_and_ioremap(&ofdev->dev, res);
> -	if (!base) {
> -		dev_err(&ofdev->dev, "couldn't map IO resource\n");
> -		err = -EADDRNOTAVAIL;
> +	base = devm_ioremap_resource(&ofdev->dev, res);
> +	if (IS_ERR(base)) {
> +		err = PTR_ERR(base);
>   		goto exit_error;
>   	}

Acked-by: Andreas Larsson <andreas@...sler.com>

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