From: Sam Protsenko Date: Thu, 14 Jul 2022 16:55:46 +0000 (+0300) Subject: iommu/exynos: Handle failed IOMMU device registration properly X-Git-Tag: v4.19.256~128 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=45eaf2b23c7dc3e8fdcc227a14bd1d26915f1e62;p=thirdparty%2Fkernel%2Fstable.git iommu/exynos: Handle failed IOMMU device registration properly [ Upstream commit fce398d2d02c0a9a2bedf7c7201b123e153e8963 ] If iommu_device_register() fails in exynos_sysmmu_probe(), the previous calls have to be cleaned up. In this case, the iommu_device_sysfs_add() should be cleaned up, by calling its remove counterpart call. Fixes: d2c302b6e8b1 ("iommu/exynos: Make use of iommu_device_register interface") Signed-off-by: Sam Protsenko Reviewed-by: Krzysztof Kozlowski Acked-by: Marek Szyprowski Link: https://lore.kernel.org/r/20220714165550.8884-3-semen.protsenko@linaro.org Signed-off-by: Joerg Roedel Signed-off-by: Sasha Levin --- diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c index 4bf6049dd2c79..8626c924f724c 100644 --- a/drivers/iommu/exynos-iommu.c +++ b/drivers/iommu/exynos-iommu.c @@ -640,7 +640,7 @@ static int __init exynos_sysmmu_probe(struct platform_device *pdev) ret = iommu_device_register(&data->iommu); if (ret) - return ret; + goto err_iommu_register; platform_set_drvdata(pdev, data); @@ -667,6 +667,10 @@ static int __init exynos_sysmmu_probe(struct platform_device *pdev) pm_runtime_enable(dev); return 0; + +err_iommu_register: + iommu_device_sysfs_remove(&data->iommu); + return ret; } static int __maybe_unused exynos_sysmmu_suspend(struct device *dev)