Re: [PATCH 20/32] riscv: Add Kendryte K210 FPIOA pinctrl driver

[Serge Semin <fancer.lancer@gmail.com>]

Damien,
Just a tiny nitpick below.

On Mon, Nov 30, 2020 at 03:13:45AM +0000, Damien Le Moal wrote:
> [...]
> 
> diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
> index 2a9046c0fb16..4a801e83919b 100644
> --- a/drivers/gpio/gpio-dwapb.c
> +++ b/drivers/gpio/gpio-dwapb.c
> @@ -617,8 +617,10 @@ static int dwapb_get_reset(struct dwapb_gpio *gpio)
>  
>         gpio->rst = devm_reset_control_get_optional_shared(gpio->dev, NULL);

>         if (IS_ERR(gpio->rst)) {
> -               dev_err(gpio->dev, "Cannot get reset descriptor\n");
> -               return PTR_ERR(gpio->rst);
> +               err = PTR_ERR(gpio->rst);
> +               if (err != -EPROBE_DEFER)
> +                       dev_err(gpio->dev, "Cannot get reset descriptor\n");
> +               return err;
>         }

There is a dedicated method to generically handle the PROBE_DEFER
error returned by functions like get(resource): dev_err_probe().
So here you'd just need to do:

-	if (IS_ERR(gpio->rst)) {
-		dev_err(gpio->dev, "Cannot get reset descriptor\n");
-		return PTR_ERR(gpio->rst);
-	}
+	if (IS_ERR(gpio->rst))
+		return dev_err_probe(gpio->dev, PTR_ERR(gpio->rst),
+				     "Cannot get reset descriptor\n");

-Sergey

> 
> and all drivers can now use builtin_platform_driver() declaration with a clean
> boot log. If you are OK with the above patch, I will send it.
> 
> Thanks !
> 
> > 
> > Yours,
> > Linus Walleij
> 
> -- 
> Damien Le Moal
> Western Digital