From e377df03082b36f748894904c990617682b8cec6 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Tue, 19 Sep 2023 19:49:31 +0200 Subject: iio: trigger: stm32-timer: 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/20230919174931.1417681-50-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron --- drivers/iio/trigger/stm32-timer-trigger.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/iio/trigger/stm32-timer-trigger.c b/drivers/iio/trigger/stm32-timer-trigger.c index 3643c4afae67..d76444030a28 100644 --- a/drivers/iio/trigger/stm32-timer-trigger.c +++ b/drivers/iio/trigger/stm32-timer-trigger.c @@ -809,7 +809,7 @@ static int stm32_timer_trigger_probe(struct platform_device *pdev) return 0; } -static int stm32_timer_trigger_remove(struct platform_device *pdev) +static void stm32_timer_trigger_remove(struct platform_device *pdev) { struct stm32_timer_trigger *priv = platform_get_drvdata(pdev); u32 val; @@ -824,8 +824,6 @@ static int stm32_timer_trigger_remove(struct platform_device *pdev) if (priv->enabled) clk_disable(priv->clk); - - return 0; } static int stm32_timer_trigger_suspend(struct device *dev) @@ -904,7 +902,7 @@ MODULE_DEVICE_TABLE(of, stm32_trig_of_match); static struct platform_driver stm32_timer_trigger_driver = { .probe = stm32_timer_trigger_probe, - .remove = stm32_timer_trigger_remove, + .remove_new = stm32_timer_trigger_remove, .driver = { .name = "stm32-timer-trigger", .of_match_table = stm32_trig_of_match, -- cgit v1.2.3