Merge tag 'iommu-fixes-v4.20-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU fixes from Joerg Roedel:

 - Two fixes for the Intel VT-d driver to fix a NULL-ptr dereference and
   an unbalance in an allocate/free path (allocated with memremap, freed
   with iounmap)

 - Fix for a crash in the Renesas IOMMU driver

 - Fix for the Advanced Virtual Interrupt Controler (AVIC) code in the
   AMD IOMMU driver

* tag 'iommu-fixes-v4.20-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/vt-d: Use memunmap to free memremap
  amd/iommu: Fix Guest Virtual APIC Log Tail Address Register
  iommu/ipmmu-vmsa: Fix crash on early domain free
  iommu/vt-d: Fix NULL pointer dereference in prq_event_thread()