linux-kernel - Re: [PATCH 3/3] ASoC: samsung: pass filter function as pointer

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Date:	Tue, 17 Nov 2015 11:25:44 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Mark Brown <broonie@...nel.org>, alsa-devel@...a-project.org,
	linux-samsung-soc@...r.kernel.org,
	Heiko Stuebner <heiko@...ech.de>,
	Sangbeom Kim <sbkim73@...sung.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	linux-kernel@...r.kernel.org, Vinod Koul <vinod.koul@...el.com>,
	Kukjin Kim <kgene@...nel.org>
Subject: Re: [PATCH 3/3] ASoC: samsung: pass filter function as pointer

On Tuesday 17 November 2015 09:45:26 Krzysztof Kozlowski wrote:
> On 14.11.2015 02:24, Arnd Bergmann wrote:
> > diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
> > index 0945b5de39e7..5a4133b6e6a6 100644
> > --- a/sound/soc/samsung/i2s.c
> > +++ b/sound/soc/samsung/i2s.c
> > @@ -1244,7 +1244,8 @@ static int samsung_i2s_probe(struct platform_device *pdev)
> >  		if (ret != 0)
> >  			return ret;
> >  
> > -		return samsung_asoc_dma_platform_register(&pdev->dev);
> > +		return samsung_asoc_dma_platform_register(&pdev->dev,
> > +						  i2s_pdata->dma_filter);
> >  	}
> 
> Here (and maybe in other places?) - NULL pointer exception. The pdata is
> NULL on all newer platforms (e.g. all Exynos).
> 
> BTW, later there is even check for NULL pdata which is pointed also by
> Smatch.

Thanks for spotting this! I'll fix it up.

	Arnd
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