linux-kernel - Re: [PATCH v14 03/11] iio: afe: rescale: add offset support

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Message-ID: <CAHp75Vd7OfLyfziraV4AHWrnTSCPPN9gzGNxaFa+V6uNe8-YUA@mail.gmail.com>
Date:   Tue, 8 Feb 2022 15:42:22 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Liam Beguin <liambeguin@...il.com>
Cc:     Peter Rosin <peda@...ntia.se>, Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-iio <linux-iio@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>
Subject: Re: [PATCH v14 03/11] iio: afe: rescale: add offset support

On Tue, Feb 8, 2022 at 4:04 AM Liam Beguin <liambeguin@...il.com> wrote:
>
> This is a preparatory change required for the addition of temperature
> sensing front ends.

...

> +               if (iio_channel_has_info(rescale->source->channel,
> +                                        IIO_CHAN_INFO_OFFSET)) {
> +                       ret = iio_read_channel_offset(rescale->source,
> +                                                     &schan_off, NULL);

> +                       if (ret != IIO_VAL_INT)
> +                               return ret < 0 ? ret : -EOPNOTSUPP;

Wonder if this actually should be

   if (ret < 0)
       return ret;
   if (ret != ...)
       return -EOP...;

> +               }

-- 
With Best Regards,
Andy Shevchenko