linux-kernel - Re: [PATCH] at_hdmac.c: use resource

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Date:	Fri, 11 Dec 2009 10:02:59 +0100
From:	Nicolas Ferre <nicolas.ferre@...el.com>
To:	H Hartley Sweeten <hartleys@...ionengravers.com>
CC:	kernel list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] at_hdmac.c: use resource_size()

H Hartley Sweeten :
> Use resource_size() for ioremap.
> 
> Signed-off-by: H Hartley Sweeten <hsweeten@...ionengravers.com>
> Cc: Nicolas Ferre <nicolas.ferre@...el.com>

Acked-by: Nicolas Ferre <nicolas.ferre@...el.com>

> ---
> 
> diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
> index c52ac9e..e16057b 100644
> --- a/drivers/dma/at_hdmac.c
> +++ b/drivers/dma/at_hdmac.c
> @@ -1012,7 +1012,7 @@ static int __init at_dma_probe(struct platform_device *pdev)
>  	atdma->dma_common.cap_mask = pdata->cap_mask;
>  	atdma->all_chan_mask = (1 << pdata->nr_channels) - 1;
>  
> -	size = io->end - io->start + 1;
> +	size = resource_size(io);
>  	if (!request_mem_region(io->start, size, pdev->dev.driver->name)) {
>  		err = -EBUSY;
>  		goto err_kfree; 
> 


-- 
Nicolas Ferre

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