usb: typec: intel_pmc_mux: 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/20230517230239.187727-92-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/typec/mux/intel_pmc_mux.c b/drivers/usb/typec/mux/intel_pmc_mux.c
index 34e4188..e049ead 100644 (file)
--- a/drivers/usb/typec/mux/intel_pmc_mux.c
+++ b/drivers/usb/typec/mux/intel_pmc_mux.c
@@ -706,7 +706,7 @@ err_remove_ports:
        return ret;
 }
 
-static int pmc_usb_remove(struct platform_device *pdev)
+static void pmc_usb_remove(struct platform_device *pdev)
 {
        struct pmc_usb *pmc = platform_get_drvdata(pdev);
        int i;
@@ -718,8 +718,6 @@ static int pmc_usb_remove(struct platform_device *pdev)
        }
 
        acpi_dev_put(pmc->iom_adev);
-
-       return 0;
 }
 
 static const struct acpi_device_id pmc_usb_acpi_ids[] = {
@@ -734,7 +732,7 @@ static struct platform_driver pmc_usb_driver = {
                .acpi_match_table = ACPI_PTR(pmc_usb_acpi_ids),
        },
        .probe = pmc_usb_probe,
-       .remove = pmc_usb_remove,
+       .remove_new = pmc_usb_remove,
 };
 
 module_platform_driver(pmc_usb_driver);