diff options
Diffstat (limited to 'drivers/iommu/amd/io_pgtable_v2.c')
| -rw-r--r-- | drivers/iommu/amd/io_pgtable_v2.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/amd/io_pgtable_v2.c b/drivers/iommu/amd/io_pgtable_v2.c index 78ac37c5ccc1..664e91c88748 100644 --- a/drivers/iommu/amd/io_pgtable_v2.c +++ b/drivers/iommu/amd/io_pgtable_v2.c @@ -158,7 +158,7 @@ static u64 *v2_alloc_pte(int nid, u64 *pgd, unsigned long iova, __npte = set_pgtable_attr(page); /* pte could have been changed somewhere. */ - if (cmpxchg64(pte, __pte, __npte) != __pte) + if (!try_cmpxchg64(pte, &__pte, __npte)) iommu_free_page(page); else if (IOMMU_PTE_PRESENT(__pte)) *updated = true; |