1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index e531a2b07207..142650e82979 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -698,13 +698,13 @@ int __init dmar_dev_scope_init(void)
         if (dmar_dev_scope_status != 1)
                 return dmar_dev_scope_status;
 
-        dmar_acpi_dev_scope_init();
-
         if (list_empty(&dmar_drhd_units)) {
                 dmar_dev_scope_status = -ENODEV;
         } else {
                 dmar_dev_scope_status = 0;
 
+                dmar_acpi_dev_scope_init();
+
                 for_each_pci_dev(dev) {
                         if (dev->is_virtfn)
                                 continue;