1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 418df8ff3e50..843b825cc1c4 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2617,7 +2617,7 @@ out_unmap:
                         bus_addr  = address + s->dma_address + (j << PAGE_SHIFT);
                         iommu_unmap_page(domain, bus_addr, PAGE_SIZE);
 
-                        if (--mapped_pages)
+                        if (--mapped_pages == 0)
                                 goto out_free_iova;
                 }
         }