From 7a0bfca4b379df8410605b99601c5bc966afff18 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Thu, 18 May 2023 01:01:36 +0200 Subject: [PATCH] usb: gadget/mv_udc_core: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Link: https://lore.kernel.org/r/20230517230239.187727-35-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/udc/mv_udc_core.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/usb/gadget/udc/mv_udc_core.c b/drivers/usb/gadget/udc/mv_udc_core.c index 08474c08d8747..79db74e2040b8 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", -- 2.30.2