diff mbox series

[30/97] usb: gadget/fsl_qe_udc: Convert to platform remove callback returning void

Message ID 20230517230239.187727-31-u.kleine-koenig@pengutronix.de (mailing list archive)
State Accepted
Commit 43efe68158fc83b1b11f1562b6c66b16280c41f0
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/fsl_qe_udc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/usb/gadget/udc/fsl_qe_udc.c b/drivers/usb/gadget/udc/fsl_qe_udc.c
index 3b1cc8fa30c8..9c5dc1c1a68e 100644
--- a/drivers/usb/gadget/udc/fsl_qe_udc.c
+++ b/drivers/usb/gadget/udc/fsl_qe_udc.c
@@ -2628,7 +2628,7 @@  static int qe_udc_resume(struct platform_device *dev)
 }
 #endif
 
-static int qe_udc_remove(struct platform_device *ofdev)
+static void qe_udc_remove(struct platform_device *ofdev)
 {
 	struct qe_udc *udc = platform_get_drvdata(ofdev);
 	struct qe_ep *ep;
@@ -2679,8 +2679,6 @@  static int qe_udc_remove(struct platform_device *ofdev)
 
 	/* wait for release() of gadget.dev to free udc */
 	wait_for_completion(&done);
-
-	return 0;
 }
 
 /*-------------------------------------------------------------------------*/
@@ -2708,7 +2706,7 @@  static struct platform_driver udc_driver = {
 		.of_match_table = qe_udc_match,
 	},
 	.probe          = qe_udc_probe,
-	.remove         = qe_udc_remove,
+	.remove_new     = qe_udc_remove,
 #ifdef CONFIG_PM
 	.suspend        = qe_udc_suspend,
 	.resume         = qe_udc_resume,