linux-kernel - Re: [PATCH] gpio: gpio-sta2x11: remove platform_set

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Message-ID: <CAMpxmJXJOnEfMrDf5krOAOydEui6fAHGqUx8Ub7iWZxMEOqT5Q@mail.gmail.com>
Date:   Tue, 25 May 2021 16:34:14 +0200
From:   Bartosz Golaszewski <bgolaszewski@...libre.com>
To:     Alexandru Ardelean <aardelean@...iqon.com>
Cc:     linux-gpio <linux-gpio@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: Re: [PATCH] gpio: gpio-sta2x11: remove platform_set_drvdata() +
 cleanup probe

On Sun, May 16, 2021 at 8:23 AM Alexandru Ardelean
<aardelean@...iqon.com> wrote:
>
> The platform_set_drvdata() call is only useful if we need to retrieve back
> the private information.
> Since the driver doesn't do that, it's not useful to have it.
>
> If this is removed, we can also just do a direct return on
> devm_gpiochip_add_data(). We don't need to print that this call failed as
> there are other ways to log/see this during probe.
>
> Signed-off-by: Alexandru Ardelean <aardelean@...iqon.com>
> ---
>  drivers/gpio/gpio-sta2x11.c | 10 +---------
>  1 file changed, 1 insertion(+), 9 deletions(-)
>
> diff --git a/drivers/gpio/gpio-sta2x11.c b/drivers/gpio/gpio-sta2x11.c
> index a74bb97a41e2..392fcab06ab8 100644
> --- a/drivers/gpio/gpio-sta2x11.c
> +++ b/drivers/gpio/gpio-sta2x11.c
> @@ -398,15 +398,7 @@ static int gsta_probe(struct platform_device *dev)
>                 return err;
>         }
>
> -       err = devm_gpiochip_add_data(&dev->dev, &chip->gpio, chip);
> -       if (err < 0) {
> -               dev_err(&dev->dev, "sta2x11 gpio: Can't register (%i)\n",
> -                       -err);
> -               return err;
> -       }
> -
> -       platform_set_drvdata(dev, chip);
> -       return 0;
> +       return devm_gpiochip_add_data(&dev->dev, &chip->gpio, chip);
>  }
>
>  static struct platform_driver sta2x11_gpio_platform_driver = {
> --
> 2.31.1
>

Applied, thanks!

Bart