linux-kernel - Re: [PATCH v2 1/6] ASoC: dwc: Remove unnecessary debug messages and tests

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Date:	Fri, 12 Dec 2014 09:39:56 +0000
From:	Andrew Jackson <Andrew.Jackson@....com>
To:	Joe Perches <joe@...ches.com>
CC:	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.de>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Rajeev Kumar <rajeevkumar.linux@...il.com>,
	Liviu Dudau <Liviu.Dudau@....com>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Arnd Bergmann <arnd@...db.de>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/6] ASoC: dwc: Remove unnecessary debug messages and
 tests

On 12/12/14 09:31, Joe Perches wrote:
> On Fri, 2014-12-12 at 09:25 +0000, Andrew Jackson wrote:
>> The devm_XXX allocation functions print a message on failure,
>> so additional messages are not required.
> []
>> diff --git a/sound/soc/dwc/designware_i2s.c b/sound/soc/dwc/designware_i2s.c
> []
>> @@ -345,26 +345,17 @@ static int dw_i2s_probe(struct platform_device *pdev)
>>  	}
>>  
>>  	dw_i2s_dai = devm_kzalloc(&pdev->dev, sizeof(*dw_i2s_dai), GFP_KERNEL);
>> -	if (!dw_i2s_dai) {
>> -		dev_err(&pdev->dev, "mem allocation failed for dai driver\n");
>> +	if (!dw_i2s_dai)
>>  		return -ENOMEM;
>> -	}
> 
> ok.
>  
>>  	dw_i2s_dai->ops = &dw_i2s_dai_ops;
>>  	dw_i2s_dai->suspend = dw_i2s_suspend;
>>  	dw_i2s_dai->resume = dw_i2s_resume;
>>  
>>  	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>> -	if (!res) {
>> -		dev_err(&pdev->dev, "no i2s resource defined\n");
>> -		return -ENODEV;
>> -	}
>> -
> 
> Why delete this?

Lars-Peter said that it was unnecessary: see <http://lists.infradead.org/pipermail/linux-arm-kernel/2014-December/308416.html>.
> 
>>  	dev->i2s_base = devm_ioremap_resource(&pdev->dev, res);
>> -	if (IS_ERR(dev->i2s_base)) {
>> -		dev_err(&pdev->dev, "ioremap fail for i2s_region\n");
>> +	if (IS_ERR(dev->i2s_base))
>>  		return PTR_ERR(dev->i2s_base);
>> -	}
> 
> or this?

Ditto

	Andrew

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