From 7d8ffee1f41dd74f3484417188da1c439d49d840 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Fri, 10 Nov 2023 16:30:17 +0100 Subject: [PATCH] serial: timbuart: 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() will be 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/20231110152927.70601-50-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/timbuart.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/tty/serial/timbuart.c b/drivers/tty/serial/timbuart.c index 0cc6524f5e8b..4bc89a9b380a 100644 --- a/drivers/tty/serial/timbuart.c +++ b/drivers/tty/serial/timbuart.c @@ -473,7 +473,7 @@ err_mem: return err; } -static int timbuart_remove(struct platform_device *dev) +static void timbuart_remove(struct platform_device *dev) { struct timbuart_port *uart = platform_get_drvdata(dev); @@ -481,8 +481,6 @@ static int timbuart_remove(struct platform_device *dev) uart_remove_one_port(&timbuart_driver, &uart->port); uart_unregister_driver(&timbuart_driver); kfree(uart); - - return 0; } static struct platform_driver timbuart_platform_driver = { @@ -490,7 +488,7 @@ static struct platform_driver timbuart_platform_driver = { .name = "timb-uart", }, .probe = timbuart_probe, - .remove = timbuart_remove, + .remove_new = timbuart_remove, }; module_platform_driver(timbuart_platform_driver); -- 2.20.1