diff mbox series

[32/97] usb: gadget/m66592-udc: Convert to platform remove callback returning void

Message ID 20230517230239.187727-33-u.kleine-koenig@pengutronix.de
State New
Headers show
Series [01/97] usb: c67x00-drv: Convert to platform remove callback returning void | expand

Commit Message

Uwe Kleine-König May 17, 2023, 11:01 p.m. UTC 
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>
---
 drivers/usb/gadget/udc/m66592-udc.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/usb/gadget/udc/m66592-udc.c b/drivers/usb/gadget/udc/m66592-udc.c
index 06e21cee431b..e05f45a4b56b 100644
--- a/drivers/usb/gadget/udc/m66592-udc.c
+++ b/drivers/usb/gadget/udc/m66592-udc.c
@@ -1512,7 +1512,7 @@  static const struct usb_gadget_ops m66592_gadget_ops = {
 	.pullup			= m66592_pullup,
 };
 
-static int m66592_remove(struct platform_device *pdev)
+static void m66592_remove(struct platform_device *pdev)
 {
 	struct m66592		*m66592 = platform_get_drvdata(pdev);
 
@@ -1527,7 +1527,6 @@  static int m66592_remove(struct platform_device *pdev)
 		clk_put(m66592->clk);
 	}
 	kfree(m66592);
-	return 0;
 }
 
 static void nop_completion(struct usb_ep *ep, struct usb_request *r)
@@ -1688,7 +1687,7 @@  static int m66592_probe(struct platform_device *pdev)
 
 /*-------------------------------------------------------------------------*/
 static struct platform_driver m66592_driver = {
-	.remove =	m66592_remove,
+	.remove_new =	m66592_remove,
 	.driver		= {
 		.name =	udc_name,
 	},