linux-kernel - Re: [PATCH 1/6] input: touchscreen: zinitix: Make sure the IRQ is allocated before it gets enabled

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Message-ID: <CACRpkdbnZ+U4GgaWyM7v62Ex6SNBMs-j6-pc7k1Wkan18=O+uw@mail.gmail.com>
Date:   Tue, 9 Nov 2021 05:37:33 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Nikita Travkin <nikita@...n.ru>
Cc:     dmitry.torokhov@...il.com, robh+dt@...nel.org,
        Michael.Srba@...nam.cz, broonie@...nel.org,
        linux-input@...r.kernel.org, devicetree@...r.kernel.org,
        phone-devel@...r.kernel.org, linux-kernel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht
Subject: Re: [PATCH 1/6] input: touchscreen: zinitix: Make sure the IRQ is
 allocated before it gets enabled

On Wed, Oct 27, 2021 at 8:15 PM Nikita Travkin <nikita@...n.ru> wrote:

> Since irq request is the last thing in the driver probe, it happens
> later than the input device registration. This means that there is a
> small time window where if the open method is called the driver will
> attempt to enable not yet available irq.
>
> Fix that by moving the irq request before the input device registration.
>
> Fixes: 26822652c85e ("Input: add zinitix touchscreen driver")
> Signed-off-by: Nikita Travkin <nikita@...n.ru>

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

Yours,
Linus Walleij