Re: [PATCH v2 3/4] staging: hikey9xx: phy-hi3670-usb3.c: hi3670_is_abbclk_seleted() returns bool

[Joe Perches]

On Thu, 2021-01-14 at 18:35 +0100, Mauro Carvalho Chehab wrote:
> Instead of using 1/0 for true/false, change the type to boolean
> and change the returned value.
[]
> diff --git a/drivers/staging/hikey9xx/phy-hi3670-usb3.c 
> b/drivers/staging/hikey9xx/phy-hi3670-usb3.c
[]
> @@ -326,24 +326,24 @@ static int hi3670_phy_set_params(struct hi3670_priv 
> *priv)
>       return ret;
>  }
> 
> -static int hi3670_is_abbclk_seleted(struct hi3670_priv *priv)
> +static bool hi3670_is_abbclk_seleted(struct hi3670_priv *priv)

Presumably this should be "selected" not "seleted"

>  {
>       u32 reg;
> 
>       if (!priv->sctrl) {
>               dev_err(priv->dev, "priv->sctrl is null!\n");
> -             return 1;
> +             return true;
>       }
> 
>       if (regmap_read(priv->sctrl, SCTRL_SCDEEPSLEEPED, &reg)) {
>               dev_err(priv->dev, "SCTRL_SCDEEPSLEEPED read failed!\n");
> -             return 1;
> +             return true;
>       }
> 
>       if ((reg & USB_CLK_SELECTED) == 0)
> -             return 1;
> +             return true;
> 
> -     return 0;
> +     return false;
>  }

        if (foo)
                return true;
        return false;

should generally be consolidated into a single test.

So this is perhaps better as:

        return (!(reg & USB_CLK_SELECTED));

But the return value seems backwards.


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