Re: [PATCH 92/97] usb: typec: qcom-pmic-typec: Convert to platform remove callback returning void

[Konrad Dybcio <konrad.dybcio@linaro.org>]

On 18.05.2023 01:02, 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 ignored (apart from
> emitting a warning) 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. Eventually after all drivers are converted, .remove_new() is
> renamed to .remove().
> 
> 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@pengutronix.de>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>

Konrad
>  drivers/usb/typec/qcom-pmic-typec.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/usb/typec/qcom-pmic-typec.c b/drivers/usb/typec/qcom-pmic-typec.c
> index 432ea62f1bab..924af87fb26d 100644
> --- a/drivers/usb/typec/qcom-pmic-typec.c
> +++ b/drivers/usb/typec/qcom-pmic-typec.c
> @@ -228,7 +228,7 @@ static int qcom_pmic_typec_probe(struct platform_device *pdev)
>  	return ret;
>  }
>  
> -static int qcom_pmic_typec_remove(struct platform_device *pdev)
> +static void qcom_pmic_typec_remove(struct platform_device *pdev)
>  {
>  	struct qcom_pmic_typec *qcom_usb = platform_get_drvdata(pdev);
>  
> @@ -237,8 +237,6 @@ static int qcom_pmic_typec_remove(struct platform_device *pdev)
>  
>  	typec_unregister_port(qcom_usb->port);
>  	usb_role_switch_put(qcom_usb->role_sw);
> -
> -	return 0;
>  }
>  
>  static const struct of_device_id qcom_pmic_typec_table[] = {
> @@ -253,7 +251,7 @@ static struct platform_driver qcom_pmic_typec = {
>  		.of_match_table = qcom_pmic_typec_table,
>  	},
>  	.probe = qcom_pmic_typec_probe,
> -	.remove = qcom_pmic_typec_remove,
> +	.remove_new = qcom_pmic_typec_remove,
>  };
>  module_platform_driver(qcom_pmic_typec);
>