diff options
| -rw-r--r-- | drivers/pci/intel-iommu.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index fd7472f28674..dcda5212f3bb 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -485,7 +485,8 @@ static struct intel_iommu *device_to_iommu(int segment, u8 bus, u8 devfn) drhd->devices[i]->bus->number == bus && drhd->devices[i]->devfn == devfn) return drhd->iommu; - if (drhd->devices[i]->subordinate && + if (drhd->devices[i] && + drhd->devices[i]->subordinate && drhd->devices[i]->subordinate->number <= bus && drhd->devices[i]->subordinate->subordinate >= bus) return drhd->iommu; |