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iommu/s390: Fail probe for non-PCI devices

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s390-iommu only supports pci_bus_type today.

Tested-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/8cb71ea1b24bd2622c1937bd9cfffe73b126eb56.1660572783.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Matthew Rosato 2022-08-15 17:20:04 +01:00 committed by Joerg Roedel
parent cbc040081f
commit 927a5fdd94
1 changed files with 6 additions and 1 deletions
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7
drivers/iommu/s390-iommu.c
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@ -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;
}