linux-kernel - Re: [PATCH] ASoC: fsl_spdif: Fix unnecessary check in fsl_spdif

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Message-ID: <20200826165308.GJ4965@sirena.org.uk>
Date:   Wed, 26 Aug 2020 17:53:08 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Tang Bin <tangbin@...s.chinamobile.com>
Cc:     timur@...nel.org, lgirdwood@...il.com, perex@...ex.cz,
        tiwai@...e.com, alsa-devel@...a-project.org,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        Zhang Shengju <zhangshengju@...s.chinamobile.com>
Subject: Re: [PATCH] ASoC: fsl_spdif: Fix unnecessary check in
 fsl_spdif_probe()

On Wed, Aug 26, 2020 at 11:09:18PM +0800, Tang Bin wrote:
> The function fsl_spdif_probe() is only called with an openfirmware
> platform device. Therefore there is no need to check that the passed
> in device is NULL.

Why is this an issue - the check will make things more robust if someone
manages to load the driver on a non-DT system and otherwise costs us a
couple of instructions?

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