linux-kernel - Re: [PATCH] power: gemini-poweroff: Fix IRQ check in gemini_poweroff

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Message-ID: <CACRpkdbKyg3wAqvbCH0nm4uOByr2P14=iabOcXTAvz85qgdYiw@mail.gmail.com>
Date:   Sun, 23 Jan 2022 02:01:01 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Miaoqian Lin <linmq006@...il.com>
Cc:     Sebastian Reichel <sre@...nel.org>, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] power: gemini-poweroff: Fix IRQ check in gemini_poweroff_probe

On Thu, Jan 20, 2022 at 11:47 AM Miaoqian Lin <linmq006@...il.com> wrote:

> platform_get_irq() returns negative error number instead 0 on failure.
> And the doc of platform_get_irq() provides a usage example:
>
>     int irq = platform_get_irq(pdev, 0);
>     if (irq < 0)
>         return irq;
>
> Fix the check of return value to catch errors correctly.
>
> Fixes: f7a388d6cd1c ("power: reset: Add a driver for the Gemini poweroff")
> Signed-off-by: Miaoqian Lin <linmq006@...il.com>

Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij