From 4cf16b6b743e0bbe3128cf97a193ee37110d597b Mon Sep 17 00:00:00 2001 From: =?utf8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Tue, 14 Mar 2023 19:01:00 +0100 Subject: [PATCH] hwspinlock: omap: 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 (mostly) ignored 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. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Acked-by: Baolin Wang Link: https://lore.kernel.org/r/20230314180100.2865801-2-u.kleine-koenig@pengutronix.de Signed-off-by: Bjorn Andersson --- drivers/hwspinlock/omap_hwspinlock.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/hwspinlock/omap_hwspinlock.c b/drivers/hwspinlock/omap_hwspinlock.c index a2538c6..a9fd9ca 100644 --- a/drivers/hwspinlock/omap_hwspinlock.c +++ b/drivers/hwspinlock/omap_hwspinlock.c @@ -145,7 +145,7 @@ runtime_err: return ret; } -static int omap_hwspinlock_remove(struct platform_device *pdev) +static void omap_hwspinlock_remove(struct platform_device *pdev) { struct hwspinlock_device *bank = platform_get_drvdata(pdev); int ret; @@ -153,12 +153,10 @@ static int omap_hwspinlock_remove(struct platform_device *pdev) ret = hwspin_lock_unregister(bank); if (ret) { dev_err(&pdev->dev, "%s failed: %d\n", __func__, ret); - return 0; + return; } pm_runtime_disable(&pdev->dev); - - return 0; } static const struct of_device_id omap_hwspinlock_of_match[] = { @@ -171,7 +169,7 @@ MODULE_DEVICE_TABLE(of, omap_hwspinlock_of_match); static struct platform_driver omap_hwspinlock_driver = { .probe = omap_hwspinlock_probe, - .remove = omap_hwspinlock_remove, + .remove_new = omap_hwspinlock_remove, .driver = { .name = "omap_hwspinlock", .of_match_table = omap_hwspinlock_of_match, -- 2.7.4