linux-kernel - Re: [PATCH 1/3] drm: bridge: add DesignWare HDMI I2S audio support

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Date:	Mon, 1 Aug 2016 15:39:21 +0100
From:	Russell King - ARM Linux <linux@...linux.org.uk>
To:	Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
Cc:	Mark Brown <broonie@...nel.org>, David Airlie <airlied@...ux.ie>,
	Fabio Estevam <fabio.estevam@...escale.com>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Koji Matsuoka <koji.matsuoka.xm@...esas.com>,
	Thierry Reding <treding@...dia.com>,
	Linux-ALSA <alsa-devel@...a-project.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Simon <horms@...ge.net.au>, linux-renesas-soc@...r.kernel.org,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] drm: bridge: add DesignWare HDMI I2S audio support

On Fri, Jun 24, 2016 at 11:40:44AM +0900, Kuninori Morimoto wrote:
> +static int snd_dw_hdmi_probe(struct platform_device *pdev)
> +{
> +	struct dw_hdmi_i2s_audio_data *audio = pdev->dev.platform_data;
> +	struct platform_device_info pdevinfo;
> +	struct hdmi_codec_pdata pdata;
> +
> +	pdata.ops		= &dw_hdmi_i2s_ops;
> +	pdata.i2s		= 1;
> +	pdata.max_i2s_channels	= 6;
> +	pdata.data		= audio;
> +
> +	memset(&pdevinfo, 0, sizeof(pdevinfo));
> +	pdevinfo.parent		= pdev->dev.parent;
> +	pdevinfo.id		= PLATFORM_DEVID_AUTO;
> +	pdevinfo.name		= HDMI_CODEC_DRV_NAME;
> +	pdevinfo.data		= &pdata;
> +	pdevinfo.size_data	= sizeof(pdata);
> +	pdevinfo.dma_mask	= DMA_BIT_MASK(32);
> +
> +	return IS_ERR_OR_NULL(platform_device_register_full(&pdevinfo));

This is certainly wrong.  You're returning a 0/1 value rather than
an error code when platform_device_register_full() fails.

-- 
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