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-rw-r--r--arch/powerpc/mm/book3s64/iommu_api.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/mm/book3s64/iommu_api.c b/arch/powerpc/mm/book3s64/iommu_api.c
index 563faa10bb66..685d7bb3d26f 100644
--- a/arch/powerpc/mm/book3s64/iommu_api.c
+++ b/arch/powerpc/mm/book3s64/iommu_api.c
@@ -263,7 +263,7 @@ long mm_iommu_put(struct mm_struct *mm, struct mm_iommu_table_group_mem_t *mem)
goto unlock_exit;
/* Are there still mappings? */
- if (atomic_cmpxchg(&mem->mapped, 1, 0) != 1) {
+ if (atomic64_cmpxchg(&mem->mapped, 1, 0) != 1) {
++mem->used;
ret = -EBUSY;
goto unlock_exit;