linux-kernel - Re: [PATCH] spi: davinci: Remove dead code in `davinci_spi

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Message-ID: <dbcc6739-e741-495f-85f9-bac104647194@sirena.org.uk>
Date:   Wed, 26 Apr 2023 15:13:31 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Dongliang Mu <dzm91@...t.edu.cn>
Cc:     Li Ningke <lnk_01@...t.edu.cn>,
        hust-os-kernel-patches@...glegroups.com, linux-spi@...r.kernel.org,
        linux-kernel@...r.kernel.org, Dan Carpenter <error27@...il.com>
Subject: Re: [PATCH] spi: davinci: Remove dead code in `davinci_spi_probe()`

On Wed, Apr 26, 2023 at 09:50:26AM +0800, Dongliang Mu wrote:

> Second, from code review of platform_get_irq / platform_get_irq_optional, it
> would warn IRQ 0 as an invalid IRQ number.

> out:
> 	if (WARN(!ret, "0 is an invalid IRQ number\n"))
> 		return -EINVAL;
> 	return ret;

Like I say I'm not sure that's actually accurate for all architectures
yet.

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