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usb: core: Convert to platform remove callback returning void

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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: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20230517230239.187727-13-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Uwe Kleine-König
2023-05-18 01:01:14 +02:00
committed by Greg Kroah-Hartman
parent 4f5bcf19bd
commit 0176568702
1 changed files with 2 additions and 4 deletions
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6
drivers/usb/dwc3/core.c
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@@ -1924,7 +1924,7 @@ static int dwc3_probe(struct platform_device *pdev)
return ret;
}
static int dwc3_remove(struct platform_device *pdev)
static void dwc3_remove(struct platform_device *pdev)
{
struct dwc3 *dwc = platform_get_drvdata(pdev);
@@ -1946,8 +1946,6 @@ static int dwc3_remove(struct platform_device *pdev)
if (dwc->usb_psy)
power_supply_put(dwc->usb_psy);
return 0;
}
#ifdef CONFIG_PM
@@ -2258,7 +2256,7 @@ MODULE_DEVICE_TABLE(acpi, dwc3_acpi_match);
static struct platform_driver dwc3_driver = {
.probe = dwc3_probe,
.remove = dwc3_remove,
.remove_new = dwc3_remove,
.driver = {
.name = "dwc3",
.of_match_table = of_match_ptr(of_dwc3_match),