Merge tag 'vfio-v6.6-rc4' of https://github.com/awilliam/linux-vfio

Pull VFIO fixes from Alex Williamson:

 - The new PDS vfio-pci variant driver only supports SR-IOV VF devices
   and incorrectly made a direct reference to the physfn field of the
   pci_dev.  Fix this both by making the Kconfig depend on IOV support
   as well as using the correct wrapper for this access (Shixiong Ou)

 - Resolve an error path issue where on unwind of the mdev registration
   the created kset is not unregistered and the wrong error code is
   returned (Jinjie Ruan)

* tag 'vfio-v6.6-rc4' of https://github.com/awilliam/linux-vfio:
  vfio/mdev: Fix a null-ptr-deref bug for mdev_unregister_parent()
  vfio/pds: Use proper PF device access helper
  vfio/pds: Add missing PCI_IOV depends