usb: typec: qcom-pmic-typec: Convert to platform remove callback returning void

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.

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Acked-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230530071913.2192214-7-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.c b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.c
index 937e855..a905160 100644 (file)
--- a/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.c
+++ b/drivers/usb/typec/tcpm/qcom/qcom_pmic_typec.c
@@ -236,7 +236,7 @@ fwnode_remove:
        return ret;
 }
 
-static int qcom_pmic_typec_remove(struct platform_device *pdev)
+static void qcom_pmic_typec_remove(struct platform_device *pdev)
 {
        struct pmic_typec *tcpm = platform_get_drvdata(pdev);
 
@@ -244,8 +244,6 @@ static int qcom_pmic_typec_remove(struct platform_device *pdev)
        qcom_pmic_typec_port_stop(tcpm->pmic_typec_port);
        tcpm_unregister_port(tcpm->tcpm_port);
        fwnode_remove_software_node(tcpm->tcpc.fwnode);
-
-       return 0;
 }
 
 static struct pmic_typec_pdphy_resources pm8150b_pdphy_res = {
@@ -337,7 +335,7 @@ static struct platform_driver qcom_pmic_typec_driver = {
                .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_driver);