linux-kernel - Re: [PATCH v2 23/25] tty: serial: samsung_tty: Add earlycon support for Apple UARTs

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Message-ID: <CAJKOXPc+j9F_TVq2ir0ehVvph96UgkjRRCK7Df4KR0tVgWOAng@mail.gmail.com>
Date:   Tue, 16 Feb 2021 11:20:46 +0100
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Hector Martin <marcan@...can.st>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Marc Zyngier <maz@...nel.org>, Rob Herring <robh@...nel.org>,
        Olof Johansson <olof@...om.net>,
        Mark Kettenis <mark.kettenis@...all.nl>,
        Tony Lindgren <tony@...mide.com>,
        Mohamed Mediouni <mohamed.mediouni@...amail.com>,
        Stan Skowronek <stan@...ellium.com>,
        Alexander Graf <graf@...zon.com>,
        Will Deacon <will@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Mark Rutland <mark.rutland@....com>,
        DTML <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH v2 23/25] tty: serial: samsung_tty: Add earlycon support
 for Apple UARTs

On Tue, 16 Feb 2021 at 11:19, Arnd Bergmann <arnd@...nel.org> wrote:
> > > +     return samsung_early_console_setup(device, opt);
> >
> > Don't you need to handle the error code - set PROT_DEFAULT() or whatever
> > was there before?
>
> __set_fixmap() has no return value, it just writes a page table entry and
> does not fail.

I meant, handle samsung_early_console_setup() error code (NULL).

Best regards,
Krzysztof