From 7f1045c61876addde13b9aeff2d504aa9dabc3a7 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Mon, 31 Jul 2023 18:54:56 +0200 Subject: [PATCH] crypto: stm32 - 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() is 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 Signed-off-by: Herbert Xu --- drivers/crypto/stm32/stm32-hash.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/crypto/stm32/stm32-hash.c b/drivers/crypto/stm32/stm32-hash.c index b102430..68c52ee 100644 --- a/drivers/crypto/stm32/stm32-hash.c +++ b/drivers/crypto/stm32/stm32-hash.c @@ -2112,7 +2112,7 @@ err_reset: return ret; } -static int stm32_hash_remove(struct platform_device *pdev) +static void stm32_hash_remove(struct platform_device *pdev) { struct stm32_hash_dev *hdev = platform_get_drvdata(pdev); int ret; @@ -2135,8 +2135,6 @@ static int stm32_hash_remove(struct platform_device *pdev) if (ret >= 0) clk_disable_unprepare(hdev->clk); - - return 0; } #ifdef CONFIG_PM @@ -2173,7 +2171,7 @@ static const struct dev_pm_ops stm32_hash_pm_ops = { static struct platform_driver stm32_hash_driver = { .probe = stm32_hash_probe, - .remove = stm32_hash_remove, + .remove_new = stm32_hash_remove, .driver = { .name = "stm32-hash", .pm = &stm32_hash_pm_ops, -- 2.7.4