diff mbox series

[36/97] usb: gadget/omap_udc: Convert to platform remove callback returning void

Message ID 20230517230239.187727-37-u.kleine-koenig@pengutronix.de (mailing list archive)
State Accepted
Commit 9225afafc1b8ccf31529a6064c8599be93bfbf2b
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/omap_udc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/usb/gadget/udc/omap_udc.c b/drivers/usb/gadget/udc/omap_udc.c
index 2d87c7cd5f7e..10c5d7f726a1 100644
--- a/drivers/usb/gadget/udc/omap_udc.c
+++ b/drivers/usb/gadget/udc/omap_udc.c
@@ -2927,7 +2927,7 @@  static int omap_udc_probe(struct platform_device *pdev)
 	return status;
 }
 
-static int omap_udc_remove(struct platform_device *pdev)
+static void omap_udc_remove(struct platform_device *pdev)
 {
 	DECLARE_COMPLETION_ONSTACK(done);
 
@@ -2939,8 +2939,6 @@  static int omap_udc_remove(struct platform_device *pdev)
 
 	release_mem_region(pdev->resource[0].start,
 			   resource_size(&pdev->resource[0]));
-
-	return 0;
 }
 
 /* suspend/resume/wakeup from sysfs (echo > power/state) or when the
@@ -2985,7 +2983,7 @@  static int omap_udc_resume(struct platform_device *dev)
 
 static struct platform_driver udc_driver = {
 	.probe		= omap_udc_probe,
-	.remove		= omap_udc_remove,
+	.remove_new	= omap_udc_remove,
 	.suspend	= omap_udc_suspend,
 	.resume		= omap_udc_resume,
 	.driver		= {