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

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Date:	Fri, 12 Dec 2014 01:31:11 -0800
From:	Joe Perches <joe@...ches.com>
To:	Andrew Jackson <andrew.jackson@....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, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/6] ASoC: dwc: Remove unnecessary debug messages and
 tests

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?

>  	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?


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