ovirt_disk: Fix vm creation (#55910)

lib/ansible/modules/cloud/ovirt/ovirt_disk.py

@@ -701,10 +701,10 @@ def main():
             disk = _search_by_lun(disks_service, lun.get('id'))
         else:
             disk = disks_module.search_entity(search_params=searchable_attributes(module))
-            if vm_service:
+            if vm_service and disk:
                 # If the VM don't exist in VMs disks, but still it's found it means it was found
                 # for template with same name as VM, so we should force create the VM disk.
-                force_create = disk.id not in [a.disk.id for a in vm_service.disk_attachments_service().list()]
+                force_create = disk.id not in [a.disk.id for a in vm_service.disk_attachments_service().list() if a.disk]
 
         ret = None
         # First take care of creating the VM, if needed: