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-rw-r--r--drivers/iommu/intel-iommu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index b12af2ff8c5..2fb7d1598a6 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -661,7 +661,7 @@ static struct intel_iommu *device_to_iommu(int segment, u8 bus, u8 devfn)
if (drhd->devices[i] &&
drhd->devices[i]->subordinate &&
drhd->devices[i]->subordinate->number <= bus &&
- drhd->devices[i]->subordinate->subordinate >= bus)
+ drhd->devices[i]->subordinate->busn_res.end >= bus)
return drhd->iommu;
}