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Date: Wed, 2 Nov 2016 08:27:58 +0000
From: Russell King - ARM Linux <linux@armlinux.org.uk>
To: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Archit Taneja <architt@codeaurora.org>,
        Mark Brown <broonie@kernel.org>, David Airlie <airlied@linux.ie>,
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        linux-kernel@vger.kernel.org, Jose Abreu <joabreu@synopsys.com>
Subject: Re: [PATCH v3] drm: bridge: add DesignWare HDMI I2S audio support
Message-ID: <20161102082758.GV1041@n2100.armlinux.org.uk>
References: <871syu4r3x.wl%kuninori.morimoto.gx@renesas.com>
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On Wed, Nov 02, 2016 at 01:18:35AM +0000, Kuninori Morimoto wrote:
> +	platform = platform_device_register_full(&pdevinfo);
> +	if (IS_ERR_OR_NULL(platform))
> +		return PTR_ERR(platform);

This is wrong.  If platform is NULL, PTR_ERR() will return zero, which
will be interpreted as success.  Please, avoid using IS_ERR_OR_NULL(),
it leads to exactly this kind of cockup - and it's unnecessary here
because platform_device_register_full() does not return NULL.

-- 
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