On Sun, 25 Aug 2019 05:59:12 +0200, Marek Behún <marek.be...@nic.cz> wrote:
>  int mv88e6390_serdes_power(struct mv88e6xxx_chip *chip, int port, bool on)
>  {
> -     int lane;
> -
> -     lane = mv88e6390_serdes_get_lane(chip, port);
> -     if (lane == -ENODEV)
> -             return 0;
> +     s8 lane;
> +     int err;
>  
> +     err = mv88e6xxx_serdes_get_lane(chip, port, &lane);
> +     if (err)
> +             return err;
>       if (lane < 0)
> -             return lane;
> +             return 0;

In fact you're also relying on -ENODEV, which is what you return here (and in
other places) instead of 0. So I'm afraid you have to address my comment now...

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