Merge tag 'iommu-fixes-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pul IOMMU fixes from Joerg Roedel:
"Four fixes have queued up to fix regressions introduced after v4.1:
- Don't fail IOMMU driver initialization when the add_device
call-back returns -ENODEV, as that just means that the device is
not translated by the IOMMU. This is pretty common on ARM.
- Two fixes for the ARM-SMMU driver for a wrong feature check and to
remove a redundant NULL check.
- A fix for the AMD IOMMU driver to fix a boot panic on systems where
the BIOS requests Unity Mappings in the IVRS table"
* tag 'iommu-fixes-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/amd: Introduce protection_domain_init() function
iommu/arm-smmu: Delete an unnecessary check before the function call "free_io_pgtable_ops"
iommu/arm-smmu: Fix broken ATOS check
iommu: Ignore -ENODEV errors from add_device call-back