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path: root/drivers/iommu/s390-iommu.c
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Diffstat (limited to 'drivers/iommu/s390-iommu.c')
-rw-r--r--drivers/iommu/s390-iommu.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/iommu/s390-iommu.c b/drivers/iommu/s390-iommu.c
index cd0ee89d63e0..ac4dab6d79e2 100644
--- a/drivers/iommu/s390-iommu.c
+++ b/drivers/iommu/s390-iommu.c
@@ -185,7 +185,12 @@ static void s390_iommu_detach_device(struct iommu_domain *domain,
static struct iommu_device *s390_iommu_probe_device(struct device *dev)
{
- struct zpci_dev *zdev = to_zpci_dev(dev);
+ struct zpci_dev *zdev;
+
+ if (!dev_is_pci(dev))
+ return ERR_PTR(-ENODEV);
+
+ zdev = to_zpci_dev(dev);
return &zdev->iommu_dev;
}