The mmu_notifier state is part of pasid_state so it can't be
freed in the mn_release path. Free the pasid_state after
mmu_notifer_unregister has completed.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Tested-by: Oded Gabbay <Oded.Gabbay@amd.com>