[PATCH 25/30] pwm: sun4i: Convert to platform remove callback returning void

[Jernej Škrabec]

Dne petek, 03. marec 2023 ob 19:54:40 CET je Uwe Kleine-König napisal(a):
> The .remove() callback for a platform driver returns an int which makes
> many driver authors wrongly assume it's possible to do error handling by
> returning an error code. However the value returned is (mostly) ignored
> and this typically results in resource leaks. To improve here there is a
> quest to make the remove callback return void. In the first step of this
> quest all drivers are converted to .remove_new() which already returns
> void.
> 
> Trivially convert this driver from always returning zero in the remove
> callback to the void returning variant.
> 
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>
> ---

Acked-by: Jernej Skrabec <jernej.skrabec at gmail.com>

Best regards,
Jernej

>  drivers/pwm/pwm-sun4i.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c
> index b973da73e9ab..a8790a8fc53e 100644
> --- a/drivers/pwm/pwm-sun4i.c
> +++ b/drivers/pwm/pwm-sun4i.c
> @@ -477,7 +477,7 @@ static int sun4i_pwm_probe(struct platform_device *pdev)
> return ret;
>  }
> 
> -static int sun4i_pwm_remove(struct platform_device *pdev)
> +static void sun4i_pwm_remove(struct platform_device *pdev)
>  {
>  	struct sun4i_pwm_chip *sun4ichip = platform_get_drvdata(pdev);
> 
> @@ -485,8 +485,6 @@ static int sun4i_pwm_remove(struct platform_device
> *pdev)
> 
>  	clk_disable_unprepare(sun4ichip->bus_clk);
>  	reset_control_assert(sun4ichip->rst);
> -
> -	return 0;
>  }
> 
>  static struct platform_driver sun4i_pwm_driver = {
> @@ -495,7 +493,7 @@ static struct platform_driver sun4i_pwm_driver = {
>  		.of_match_table = sun4i_pwm_dt_ids,
>  	},
>  	.probe = sun4i_pwm_probe,
> -	.remove = sun4i_pwm_remove,
> +	.remove_new = sun4i_pwm_remove,
>  };
>  module_platform_driver(sun4i_pwm_driver);