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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2023-05-18 01:01:46 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-05-28 12:36:27 +0100
commitcffdf49d739b3dc555c742dcf6cceb52e9a9a0df (patch)
tree7556b52943f06569129bc77695c0b13df11f6e15
parent48c125b55aa29ba55b9331add94f55b5d7b4c2dc (diff)
usb: gadget/udc-xilinx: 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> Link: https://lore.kernel.org/r/20230517230239.187727-45-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/usb/gadget/udc/udc-xilinx.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/usb/gadget/udc/udc-xilinx.c b/drivers/usb/gadget/udc/udc-xilinx.c
index 4827e3cd3834..d73111b5cd84 100644
--- a/drivers/usb/gadget/udc/udc-xilinx.c
+++ b/drivers/usb/gadget/udc/udc-xilinx.c
@@ -2178,14 +2178,12 @@ fail:
*
* Return: 0 always
*/
-static int xudc_remove(struct platform_device *pdev)
+static void xudc_remove(struct platform_device *pdev)
{
struct xusb_udc *udc = platform_get_drvdata(pdev);
usb_del_gadget_udc(&udc->gadget);
clk_disable_unprepare(udc->clk);
-
- return 0;
}
#ifdef CONFIG_PM_SLEEP
@@ -2257,7 +2255,7 @@ static struct platform_driver xudc_driver = {
.pm = &xudc_pm_ops,
},
.probe = xudc_probe,
- .remove = xudc_remove,
+ .remove_new = xudc_remove,
};
module_platform_driver(xudc_driver);