linux-kernel - Re: [PATCH] omap: convert to devm_ioremap

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Date:	Tue, 12 Mar 2013 09:16:20 +0100
From:	Peter Ujfalusi <peter.ujfalusi@...com>
To:	Silviu-Mihai Popescu <silviupopescu1990@...il.com>
CC:	<linux-omap@...r.kernel.org>, <jarkko.nikula@...mer.com>,
	<lgirdwood@...il.com>, <broonie@...nsource.wolfsonmicro.com>,
	<perex@...ex.cz>, <tiwai@...e.de>, <alsa-devel@...a-project.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] omap: convert to devm_ioremap_resource()

Hi,

On 03/11/2013 04:58 PM, Silviu-Mihai Popescu wrote:
> Convert all uses of devm_request_and_ioremap() to the newly introduced
> devm_ioremap_resource() which provides more consistent error handling.
> 
> devm_ioremap_resource() provides its own error messages so all explicit
> error messages can be removed from the failure code paths.

I believe both of the drivers has been patched for this:
omap-mcbpdm:
http://mailman.alsa-project.org/pipermail/alsa-devel/2013-February/059484.html
http://mailman.alsa-project.org/pipermail/alsa-devel/2013-February/059427.html

omap-dmic:
http://mailman.alsa-project.org/pipermail/alsa-devel/2013-February/059485.html

and they should be already queued for next.

-- 
Péter

> 
> Signed-off-by: Silviu-Mihai Popescu <silviupopescu1990@...il.com>
> ---
>  sound/soc/omap/omap-dmic.c  |    9 +++------
>  sound/soc/omap/omap-mcpdm.c |    8 +++-----
>  2 files changed, 6 insertions(+), 11 deletions(-)
> 
> diff --git a/sound/soc/omap/omap-dmic.c b/sound/soc/omap/omap-dmic.c
> index 77e9e7e..8ebaf11 100644
> --- a/sound/soc/omap/omap-dmic.c
> +++ b/sound/soc/omap/omap-dmic.c
> @@ -493,12 +493,9 @@ static int asoc_dmic_probe(struct platform_device *pdev)
>  		goto err_put_clk;
>  	}
>  
> -	dmic->io_base = devm_request_and_ioremap(&pdev->dev, res);
> -	if (!dmic->io_base) {
> -		dev_err(&pdev->dev, "cannot remap\n");
> -		ret = -ENOMEM;
> -		goto err_put_clk;
> -	}
> +	dmic->io_base = devm_ioremap_resource(&pdev->dev, res);
> +	if (IS_ERR(dmic->io_base))
> +		return PTR_ERR(dmic->io_base);
>  
>  	ret = snd_soc_register_dai(&pdev->dev, &omap_dmic_dai);
>  	if (ret)
> diff --git a/sound/soc/omap/omap-mcpdm.c b/sound/soc/omap/omap-mcpdm.c
> index 079f277..ddfcc18 100644
> --- a/sound/soc/omap/omap-mcpdm.c
> +++ b/sound/soc/omap/omap-mcpdm.c
> @@ -464,11 +464,9 @@ static int asoc_mcpdm_probe(struct platform_device *pdev)
>  	if (res == NULL)
>  		return -ENOMEM;
>  
> -	mcpdm->io_base = devm_request_and_ioremap(&pdev->dev, res);
> -	if (!mcpdm->io_base) {
> -		dev_err(&pdev->dev, "cannot remap\n");
> -		return -ENOMEM;
> -	}
> +	mcpdm->io_base = devm_ioremap_resource(&pdev->dev, res);
> +	if (IS_ERR(mcpdm->io_base))
> +		return PTR_ERR(mcpdm->io_base);
>  
>  	mcpdm->irq = platform_get_irq(pdev, 0);
>  	if (mcpdm->irq < 0)
> 

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