From d97d263132a69a0bda54efce3df04e55fa6341f7 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Mon, 19 Feb 2024 11:59:30 +0100 Subject: w1: w1-gpio: Convert to platform remove callback returning void MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 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/bd69ccde7395cf4bf63765e29c1ce83834d3669b.1708340114.git.u.kleine-koenig@pengutronix.de Signed-off-by: Krzysztof Kozlowski --- drivers/w1/masters/w1-gpio.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'drivers/w1') diff --git a/drivers/w1/masters/w1-gpio.c b/drivers/w1/masters/w1-gpio.c index 05c67038ed20..34128e6bbbfa 100644 --- a/drivers/w1/masters/w1-gpio.c +++ b/drivers/w1/masters/w1-gpio.c @@ -141,7 +141,7 @@ static int w1_gpio_probe(struct platform_device *pdev) return 0; } -static int w1_gpio_remove(struct platform_device *pdev) +static void w1_gpio_remove(struct platform_device *pdev) { struct w1_bus_master *master = platform_get_drvdata(pdev); struct w1_gpio_ddata *ddata = master->data; @@ -150,8 +150,6 @@ static int w1_gpio_remove(struct platform_device *pdev) gpiod_set_value(ddata->pullup_gpiod, 0); w1_remove_master_device(master); - - return 0; } static struct platform_driver w1_gpio_driver = { @@ -160,7 +158,7 @@ static struct platform_driver w1_gpio_driver = { .of_match_table = of_match_ptr(w1_gpio_dt_ids), }, .probe = w1_gpio_probe, - .remove = w1_gpio_remove, + .remove_new = w1_gpio_remove, }; module_platform_driver(w1_gpio_driver); -- cgit v1.2.3