From: Uwe Kleine-König Date: Tue, 21 Mar 2023 08:41:25 +0000 (+0100) Subject: iommu/sprd: Convert to platform remove callback returning void X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=421b6093f5ac3edf9cb79f36e79b7e2d51d6182b;p=linux.git iommu/sprd: Convert to platform remove callback returning void 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/20230321084125.337021-11-u.kleine-koenig@pengutronix.de Signed-off-by: Joerg Roedel --- diff --git a/drivers/iommu/sprd-iommu.c b/drivers/iommu/sprd-iommu.c index ae94d74b73f46..907569e76d594 100644 --- a/drivers/iommu/sprd-iommu.c +++ b/drivers/iommu/sprd-iommu.c @@ -507,7 +507,7 @@ free_page: return ret; } -static int sprd_iommu_remove(struct platform_device *pdev) +static void sprd_iommu_remove(struct platform_device *pdev) { struct sprd_iommu_device *sdev = platform_get_drvdata(pdev); @@ -519,8 +519,6 @@ static int sprd_iommu_remove(struct platform_device *pdev) platform_set_drvdata(pdev, NULL); iommu_device_sysfs_remove(&sdev->iommu); iommu_device_unregister(&sdev->iommu); - - return 0; } static struct platform_driver sprd_iommu_driver = { @@ -530,7 +528,7 @@ static struct platform_driver sprd_iommu_driver = { .suppress_bind_attrs = true, }, .probe = sprd_iommu_probe, - .remove = sprd_iommu_remove, + .remove_new = sprd_iommu_remove, }; module_platform_driver(sprd_iommu_driver);