[PATCH 03/53] drm/arm/malidp: Convert to platform remove callback returning void

Liviu Dudau liviu.dudau at arm.com
Wed May 10 21:52:27 UTC 2023


On Sun, May 07, 2023 at 06:25:26PM +0200, Uwe Kleine-König wrote:
> 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: Liviu Dudau <liviu.dudau at arm.com>

Best regards,
Liviu

> ---
>  drivers/gpu/drm/arm/malidp_drv.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c
> index 589c1c66a6dc..389ef1c3d9b6 100644
> --- a/drivers/gpu/drm/arm/malidp_drv.c
> +++ b/drivers/gpu/drm/arm/malidp_drv.c
> @@ -936,10 +936,9 @@ static int malidp_platform_probe(struct platform_device *pdev)
>  					       match);
>  }
>  
> -static int malidp_platform_remove(struct platform_device *pdev)
> +static void malidp_platform_remove(struct platform_device *pdev)
>  {
>  	component_master_del(&pdev->dev, &malidp_master_ops);
> -	return 0;
>  }
>  
>  static int __maybe_unused malidp_pm_suspend(struct device *dev)
> @@ -982,7 +981,7 @@ static const struct dev_pm_ops malidp_pm_ops = {
>  
>  static struct platform_driver malidp_platform_driver = {
>  	.probe		= malidp_platform_probe,
> -	.remove		= malidp_platform_remove,
> +	.remove_new	= malidp_platform_remove,
>  	.driver	= {
>  		.name = "mali-dp",
>  		.pm = &malidp_pm_ops,
> -- 
> 2.39.2
> 

-- 
====================
| I would like to |
| fix the world,  |
| but they're not |
| giving me the   |
 \ source code!  /
  ---------------
    ¯\_(ツ)_/¯


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