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iommu/amd: Fix sysfs leak in iommu init

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[ Upstream commit a295ec52c8624883885396fde7b4df1a179627c3 ]

During the iommu initialization, iommu_init_pci() adds sysfs nodes.
However, these nodes aren't remove in free_iommu_resources() subsequently.

Fixes: 39ab9555c241 ("iommu: Add sysfs bindings for struct iommu_device")
Signed-off-by: Kun(llfl) <llfl@linux.alibaba.com>
Reviewed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/c8e0d11c6ab1ee48299c288009cf9c5dae07b42d.1715215003.git.llfl@linux.alibaba.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Kun(llfl) 2024-05-09 08:42:20 +08:00 • committed by Ksawlii
parent 6db92ff66e
commit fbe242c90d
1 changed files with 9 additions and 0 deletions
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9
drivers/iommu/amd/init.c
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@ -1494,8 +1494,17 @@ static void __init free_pci_segments(void)
}
}
static void __init free_sysfs(struct amd_iommu *iommu)
{
if (iommu->iommu.dev) {
iommu_device_unregister(&iommu->iommu);
iommu_device_sysfs_remove(&iommu->iommu);
}
}
static void __init free_iommu_one(struct amd_iommu *iommu)
{
free_sysfs(iommu);
free_cwwb_sem(iommu);
free_command_buffer(iommu);
free_event_buffer(iommu);