diff mbox series

[34/97] usb: gadget/mv_udc_core: Convert to platform remove callback returning void

Message ID 20230517230239.187727-35-u.kleine-koenig@pengutronix.de (mailing list archive)
State Accepted
Commit 7a0bfca4b379df8410605b99601c5bc966afff18
Headers show
Series usb: 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/mv_udc_core.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/usb/gadget/udc/mv_udc_core.c b/drivers/usb/gadget/udc/mv_udc_core.c
index 08474c08d874..79db74e2040b 100644
--- a/drivers/usb/gadget/udc/mv_udc_core.c
+++ b/drivers/usb/gadget/udc/mv_udc_core.c
@@ -2077,7 +2077,7 @@  static void gadget_release(struct device *_dev)
 	complete(udc->done);
 }
 
-static int mv_udc_remove(struct platform_device *pdev)
+static void mv_udc_remove(struct platform_device *pdev)
 {
 	struct mv_udc *udc;
 
@@ -2099,8 +2099,6 @@  static int mv_udc_remove(struct platform_device *pdev)
 
 	/* free dev, wait for the release() finished */
 	wait_for_completion(udc->done);
-
-	return 0;
 }
 
 static int mv_udc_probe(struct platform_device *pdev)
@@ -2411,7 +2409,7 @@  static void mv_udc_shutdown(struct platform_device *pdev)
 
 static struct platform_driver udc_driver = {
 	.probe		= mv_udc_probe,
-	.remove		= mv_udc_remove,
+	.remove_new	= mv_udc_remove,
 	.shutdown	= mv_udc_shutdown,
 	.driver		= {
 		.name	= "mv-udc",