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From:   Timur Tabi <timur@kernel.org>
Date:   Wed, 13 Nov 2019 23:14:49 -0600
Message-ID: <CAOZdJXVQ_wQLK-4uutb2e6zOt0b8FBVY3qoWdoo4UM8p7=bV0A@mail.gmail.com>
Subject: Re: [PATCH v4 30/47] serial: ucc_uart: factor out soft_uart initialization
To:     Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc:     Qiang Zhao <qiang.zhao@nxp.com>, Li Yang <leoyang.li@nxp.com>,
        Christophe Leroy <christophe.leroy@c-s.fr>,
        linuxppc-dev@lists.ozlabs.org,
        linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
        lkml <linux-kernel@vger.kernel.org>,
        Scott Wood <oss@buserror.net>, linux-serial@vger.kernel.org
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On Fri, Nov 8, 2019 at 7:03 AM Rasmus Villemoes
<linux@rasmusvillemoes.dk> wrote:
>
> -       /*
> -        * Determine if we need Soft-UART mode
> -        */
>         if (of_find_property(np, "soft-uart", NULL)) {
>                 dev_dbg(&ofdev->dev, "using Soft-UART mode\n");
>                 soft_uart = 1;
> +       } else {
> +               return 0;
>         }

How about:

if (!of_find_property(np, "soft-uart", NULL))
    return 0;

And I think you should be able to get rid of the "soft_uart" variable.