* [PATCH v2 1/1] iommu/amd: Fix sysfs leak in iommu init
@ 2024-05-09 0:42 Kun(llfl)
2024-05-13 6:45 ` Suthikulpanit, Suravee
0 siblings, 1 reply; 2+ messages in thread
From: Kun(llfl) @ 2024-05-09 0:42 UTC (permalink / raw)
To: Joerg Roedel, Will Deacon, Jerry Snitselaar
Cc: Suravee Suthikulpanit, Robin Murphy, iommu, linux-kernel
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>
---
drivers/iommu/amd/init.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c
index ac6754a85f35..82a54898194a 100644
--- a/drivers/iommu/amd/init.c
+++ b/drivers/iommu/amd/init.c
@@ -1678,8 +1678,17 @@ 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);
--
2.43.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v2 1/1] iommu/amd: Fix sysfs leak in iommu init
2024-05-09 0:42 [PATCH v2 1/1] iommu/amd: Fix sysfs leak in iommu init Kun(llfl)
@ 2024-05-13 6:45 ` Suthikulpanit, Suravee
0 siblings, 0 replies; 2+ messages in thread
From: Suthikulpanit, Suravee @ 2024-05-13 6:45 UTC (permalink / raw)
To: Kun(llfl), Joerg Roedel, Will Deacon, Jerry Snitselaar
Cc: Robin Murphy, iommu, linux-kernel
On 5/9/2024 7:42 AM, Kun(llfl) wrote:
> 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>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2024-05-13 6:45 ` Suthikulpanit, Suravee
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