linux-kernel - Re: [PATCH 11/33] iio: Convert to devm_ioremap

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Date:	Tue, 22 Jan 2013 12:12:22 +0000
From:	Jonathan Cameron <jic23@...nel.org>
To:	Thierry Reding <thierry.reding@...onic-design.de>
CC:	linux-kernel@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Arnd Bergmann <arnd@...db.de>,
	Wolfram Sang <w.sang@...gutronix.de>,
	Jonathan Cameron <jic23@....ac.uk>, linux-iio@...r.kernel.org
Subject: Re: [PATCH 11/33] iio: Convert to devm_ioremap_resource()

On 01/21/2013 10:09 AM, Thierry Reding wrote:
> Convert all uses of devm_request_and_ioremap() to the newly introduced
> devm_ioremap_resource() which provides more consistent error handling.
> 
> Signed-off-by: Thierry Reding <thierry.reding@...onic-design.de>
> Cc: Jonathan Cameron <jic23@....ac.uk>
> Cc: linux-iio@...r.kernel.org
Looks fine to me.

Acked-by: Jonathan Cameron <jic23@...nel.org>
> ---
>  drivers/iio/adc/at91_adc.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
> index a526c0e..83c836b 100644
> --- a/drivers/iio/adc/at91_adc.c
> +++ b/drivers/iio/adc/at91_adc.c
> @@ -557,9 +557,9 @@ static int at91_adc_probe(struct platform_device *pdev)
>  
>  	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>  
> -	st->reg_base = devm_request_and_ioremap(&pdev->dev, res);
> -	if (!st->reg_base) {
> -		ret = -ENOMEM;
> +	st->reg_base = devm_ioremap_resource(&pdev->dev, res);
> +	if (IS_ERR(st->reg_base)) {
> +		ret = PTR_ERR(st->reg_base);
>  		goto error_free_device;
>  	}
>  
> 
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