From f80473183b40bb98a7499c61091c3c55b646f387 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Tue, 21 Mar 2023 09:41:17 +0100 Subject: [PATCH] iommu/apple-dart: 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 Link: https://lore.kernel.org/r/20230321084125.337021-3-u.kleine-koenig@pengutronix.de Signed-off-by: Joerg Roedel --- drivers/iommu/apple-dart.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/iommu/apple-dart.c b/drivers/iommu/apple-dart.c index 06169d36eab82..8af64b57f0483 100644 --- a/drivers/iommu/apple-dart.c +++ b/drivers/iommu/apple-dart.c @@ -1150,7 +1150,7 @@ err_clk_disable: return ret; } -static int apple_dart_remove(struct platform_device *pdev) +static void apple_dart_remove(struct platform_device *pdev) { struct apple_dart *dart = platform_get_drvdata(pdev); @@ -1161,8 +1161,6 @@ static int apple_dart_remove(struct platform_device *pdev) iommu_device_sysfs_remove(&dart->iommu); clk_bulk_disable_unprepare(dart->num_clks, dart->clks); - - return 0; } static const struct apple_dart_hw apple_dart_hw_t8103 = { @@ -1296,7 +1294,7 @@ static struct platform_driver apple_dart_driver = { .pm = pm_sleep_ptr(&apple_dart_pm_ops), }, .probe = apple_dart_probe, - .remove = apple_dart_remove, + .remove_new = apple_dart_remove, }; module_platform_driver(apple_dart_driver); -- 2.30.2