[PATCH 027/173] ASoC: atmel: mchp-pdmc: Convert to platform remove callback returning void

Claudiu.Beznea at microchip.com Claudiu.Beznea at microchip.com
Thu Mar 16 04:09:54 PDT 2023


On 15.03.2023 17:05, Uwe Kleine-König wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
> 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>

Reviewed-by: Claudiu Beznea <claudiu.beznea at microchip.com>


> ---
>  sound/soc/atmel/mchp-pdmc.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/sound/soc/atmel/mchp-pdmc.c b/sound/soc/atmel/mchp-pdmc.c
> index 1aed3baa9369..7fd2c3e100e8 100644
> --- a/sound/soc/atmel/mchp-pdmc.c
> +++ b/sound/soc/atmel/mchp-pdmc.c
> @@ -1134,7 +1134,7 @@ static int mchp_pdmc_probe(struct platform_device *pdev)
>         return ret;
>  }
> 
> -static int mchp_pdmc_remove(struct platform_device *pdev)
> +static void mchp_pdmc_remove(struct platform_device *pdev)
>  {
>         struct mchp_pdmc *dd = platform_get_drvdata(pdev);
> 
> @@ -1142,8 +1142,6 @@ static int mchp_pdmc_remove(struct platform_device *pdev)
>                 mchp_pdmc_runtime_suspend(dd->dev);
> 
>         pm_runtime_disable(dd->dev);
> -
> -       return 0;
>  }
> 
>  static const struct of_device_id mchp_pdmc_of_match[] = {
> @@ -1168,7 +1166,7 @@ static struct platform_driver mchp_pdmc_driver = {
>                 .pm             = pm_ptr(&mchp_pdmc_pm_ops),
>         },
>         .probe  = mchp_pdmc_probe,
> -       .remove = mchp_pdmc_remove,
> +       .remove_new = mchp_pdmc_remove,
>  };
>  module_platform_driver(mchp_pdmc_driver);
> 
> --
> 2.39.2
> 



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