From: Joerg Roedel <jroedel@suse.de>
Date: Wed, 27 May 2020 13:53:08 +0200
Subject: iommu/amd: Free page-table in protection_domain_free()
Git-commit: 75b27745097dde18a0b8936d73cf72df61b2253b
Patch-mainline: v5.8-rc1
References: bsc#1175713
Align release of the page-table with the place where it is allocated.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Reviewed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/20200527115313.7426-6-joro@8bytes.org
---
drivers/iommu/amd_iommu.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 434435b99a8a..24e5678b5708 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2387,12 +2387,18 @@ static void cleanup_domain(struct protection_domain *domain)
static void protection_domain_free(struct protection_domain *domain)
{
+ struct domain_pgtable pgtable;
+
if (!domain)
return;
if (domain->id)
domain_id_free(domain->id);
+ amd_iommu_domain_get_pgtable(domain, &pgtable);
+ atomic64_set(&domain->pt_root, 0);
+ free_pagetable(&pgtable);
+
kfree(domain);
}
@@ -2476,7 +2482,6 @@ static struct iommu_domain *amd_iommu_domain_alloc(unsigned type)
static void amd_iommu_domain_free(struct iommu_domain *dom)
{
struct protection_domain *domain;
- struct domain_pgtable pgtable;
domain = to_pdomain(dom);
@@ -2494,10 +2499,6 @@ static void amd_iommu_domain_free(struct iommu_domain *dom)
dma_ops_domain_free(domain);
break;
default:
- amd_iommu_domain_get_pgtable(domain, &pgtable);
- atomic64_set(&domain->pt_root, 0);
- free_pagetable(&pgtable);
-
if (domain->flags & PD_IOMMUV2_MASK)
free_gcr3_table(domain);