diff mbox series

[31/97] usb: gadget/fusb300_udc: Convert to platform remove callback returning void

Message ID 20230517230239.187727-32-u.kleine-koenig@pengutronix.de (mailing list archive)
State Accepted
Commit a864e8f27738a4e6429a13fe117f0d6ea7401c3a
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/fusb300_udc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/usb/gadget/udc/fusb300_udc.c b/drivers/usb/gadget/udc/fusb300_udc.c
index 08ba9c8c1e67..bd03d475f927 100644
--- a/drivers/usb/gadget/udc/fusb300_udc.c
+++ b/drivers/usb/gadget/udc/fusb300_udc.c
@@ -1338,7 +1338,7 @@  static const struct usb_gadget_ops fusb300_gadget_ops = {
 	.udc_stop	= fusb300_udc_stop,
 };
 
-static int fusb300_remove(struct platform_device *pdev)
+static void fusb300_remove(struct platform_device *pdev)
 {
 	struct fusb300 *fusb300 = platform_get_drvdata(pdev);
 	int i;
@@ -1352,8 +1352,6 @@  static int fusb300_remove(struct platform_device *pdev)
 	for (i = 0; i < FUSB300_MAX_NUM_EP; i++)
 		kfree(fusb300->ep[i]);
 	kfree(fusb300);
-
-	return 0;
 }
 
 static int fusb300_probe(struct platform_device *pdev)
@@ -1508,7 +1506,7 @@  static int fusb300_probe(struct platform_device *pdev)
 }
 
 static struct platform_driver fusb300_driver = {
-	.remove =	fusb300_remove,
+	.remove_new =	fusb300_remove,
 	.driver		= {
 		.name =	udc_name,
 	},