usb: typec: ucsi: acpi: 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.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20230517230239.187727-97-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/typec/ucsi/ucsi_acpi.c b/drivers/usb/typec/ucsi/ucsi_acpi.c
index 217355f1f9b94a7de899b9b2e9d9cd2f30b1ac56..6bbf490ac4010e9ad31a140bd484ec40077f0af6 100644 (file)
--- a/drivers/usb/typec/ucsi/ucsi_acpi.c
+++ b/drivers/usb/typec/ucsi/ucsi_acpi.c
@@ -212,7 +212,7 @@ static int ucsi_acpi_probe(struct platform_device *pdev)
        return 0;
 }
 
-static int ucsi_acpi_remove(struct platform_device *pdev)
+static void ucsi_acpi_remove(struct platform_device *pdev)
 {
        struct ucsi_acpi *ua = platform_get_drvdata(pdev);
 
@@ -221,8 +221,6 @@ static int ucsi_acpi_remove(struct platform_device *pdev)
 
        acpi_remove_notify_handler(ACPI_HANDLE(&pdev->dev), ACPI_DEVICE_NOTIFY,
                                   ucsi_acpi_notify);
-
-       return 0;
 }
 
 static int ucsi_acpi_resume(struct device *dev)
@@ -247,7 +245,7 @@ static struct platform_driver ucsi_acpi_platform_driver = {
                .acpi_match_table = ACPI_PTR(ucsi_acpi_match),
        },
        .probe = ucsi_acpi_probe,
-       .remove = ucsi_acpi_remove,
+       .remove_new = ucsi_acpi_remove,
 };
 
 module_platform_driver(ucsi_acpi_platform_driver);