From 4e26858958e41f520a607df258a0c709f0c9a5ce Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Wed, 20 Sep 2023 14:57:45 +0200 Subject: [PATCH] Input: samsung-keypad - 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/20230920125829.1478827-9-u.kleine-koenig@pengutronix.de Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/samsung-keypad.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/input/keyboard/samsung-keypad.c b/drivers/input/keyboard/samsung-keypad.c index d85dd2489293..e212eff7687c 100644 --- a/drivers/input/keyboard/samsung-keypad.c +++ b/drivers/input/keyboard/samsung-keypad.c @@ -444,7 +444,7 @@ err_unprepare_clk: return error; } -static int samsung_keypad_remove(struct platform_device *pdev) +static void samsung_keypad_remove(struct platform_device *pdev) { struct samsung_keypad *keypad = platform_get_drvdata(pdev); @@ -453,8 +453,6 @@ static int samsung_keypad_remove(struct platform_device *pdev) input_unregister_device(keypad->input_dev); clk_unprepare(keypad->clk); - - return 0; } static int samsung_keypad_runtime_suspend(struct device *dev) @@ -589,7 +587,7 @@ MODULE_DEVICE_TABLE(platform, samsung_keypad_driver_ids); static struct platform_driver samsung_keypad_driver = { .probe = samsung_keypad_probe, - .remove = samsung_keypad_remove, + .remove_new = samsung_keypad_remove, .driver = { .name = "samsung-keypad", .of_match_table = of_match_ptr(samsung_keypad_dt_match),