linux-kernel - Re: [alsa-devel] [PATCH 1/15] sound/soc/mxs/mxs-saif.c: add missing iounmap

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Date:	Thu, 26 Jan 2012 12:28:51 +0100 (CET)
From:	Julia Lawall <julia.lawall@...6.fr>
To:	Wolfram Sang <w.sang@...gutronix.de>
cc:	Julia Lawall <julia.lawall@...6.fr>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	"alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
	Takashi Iwai <tiwai@...e.de>,
	"kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Dong Aisheng-B29396 <B29396@...escale.com>,
	Liam Girdwood <lrg@...com>
Subject: Re: [alsa-devel] [PATCH 1/15] sound/soc/mxs/mxs-saif.c: add missing
 iounmap

On Thu, 26 Jan 2012, Wolfram Sang wrote:

> On Thu, Jan 26, 2012 at 12:21:35PM +0100, Julia Lawall wrote:
>> On Thu, 26 Jan 2012, Wolfram Sang wrote:
>>
>>>> @@ -666,18 +666,19 @@ static int mxs_saif_probe(struct platform_device *pdev)
>>>>  		goto failed_get_resource;
>>>>  	}
>>>>
>>>> -	if (!request_mem_region(iores->start, resource_size(iores),
>>>> -				"mxs-saif")) {
>>>> +	if (!devm_request_mem_region(&pdev->dev, iores->start,
>>>> +				     resource_size(iores), "mxs-saif")) {
>>>>  		dev_err(&pdev->dev, "request_mem_region failed\n");
>>>>  		ret = -EBUSY;
>>>>  		goto failed_get_resource;
>>>>  	}
>>>>
>>>> -	saif->base = ioremap(iores->start, resource_size(iores));
>>>> +	saif->base = devm_ioremap(&pdev->dev, iores->start,
>>>> +				  resource_size(iores));
>>>
>>> devm_request_and_ioremap() to save even more code?
>>
>> I didn't do that because apparently it is not yet in a release?  I
>> have another for introducing those...
>
> It got included in the last merge window:
>
> commit 72f8c0bfa0de64c68ee59f40eb9b2683bffffbb0
> Author: Wolfram Sang <w.sang@...gutronix.de>
> Date:   Tue Oct 25 15:16:47 2011 +0200
>
>    lib: devres: add convenience function to remap a resource
> ...

OK, thanks.  I'll take that into account.

julia
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