From d93f3feb443939d27a2dc664267d29d42c4a6955 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Wed, 20 Sep 2023 14:57:43 +0200 Subject: [PATCH] Input: omap-keypad - 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/20230920125829.1478827-7-u.kleine-koenig@pengutronix.de Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/omap-keypad.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/input/keyboard/omap-keypad.c b/drivers/input/keyboard/omap-keypad.c index 24440b4986457..454fb86756573 100644 --- a/drivers/input/keyboard/omap-keypad.c +++ b/drivers/input/keyboard/omap-keypad.c @@ -287,7 +287,7 @@ err2: return -EINVAL; } -static int omap_kp_remove(struct platform_device *pdev) +static void omap_kp_remove(struct platform_device *pdev) { struct omap_kp *omap_kp = platform_get_drvdata(pdev); @@ -303,13 +303,11 @@ static int omap_kp_remove(struct platform_device *pdev) input_unregister_device(omap_kp->input); kfree(omap_kp); - - return 0; } static struct platform_driver omap_kp_driver = { .probe = omap_kp_probe, - .remove = omap_kp_remove, + .remove_new = omap_kp_remove, .driver = { .name = "omap-keypad", }, -- 2.30.2