github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-27 00:22:00 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

usb: gadget/renesas_usbf: Convert to platform remove callback returning void

Browse Source 
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>
Acked-by: Herve Codina <herve.codina@bootlin.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230517230239.187727-41-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Uwe Kleine-König 2023-05-18 01:01:42 +02:00 committed by Greg Kroah-Hartman
parent 3ffd577926
commit cc3ee267e4
1 changed files with 2 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/usb/gadget/udc/renesas_usbf.c
View File

@ -3361,15 +3361,13 @@ static int usbf_probe(struct platform_device *pdev)
return 0;
}
static int usbf_remove(struct platform_device *pdev)
static void usbf_remove(struct platform_device *pdev)
{
struct usbf_udc *udc = platform_get_drvdata(pdev);
usb_del_gadget_udc(&udc->gadget);
pm_runtime_put(&pdev->dev);
return 0;
}
static const struct of_device_id usbf_match[] = {
@ -3385,7 +3383,7 @@ static struct platform_driver udc_driver = {
.of_match_table = usbf_match,
},
.probe = usbf_probe,
.remove = usbf_remove,
.remove_new = usbf_remove,
};
module_platform_driver(udc_driver);