diff --git a/nova/endpoint/cloud.py b/nova/endpoint/cloud.py
index 13a995b4..5209ec90 100644
--- a/nova/endpoint/cloud.py
+++ b/nova/endpoint/cloud.py
@@ -583,8 +583,8 @@ class CloudController(object):
         base_options['vcpus'] = type_data['vcpus']
         base_options['local_gb'] = type_data['local_gb']
 
-        for num in range():
-            inst_id = db.instance_create(context, base_options)
+        for num in range(num_instances):
+            inst_id = db.instance_create(context, base_options)['id']
 
             inst = {}
             inst['mac_address'] = utils.generate_mac()
diff --git a/nova/tests/compute_unittest.py b/nova/tests/compute_unittest.py
index b45367eb..59cf2a9b 100644
--- a/nova/tests/compute_unittest.py
+++ b/nova/tests/compute_unittest.py
@@ -63,7 +63,7 @@ class ComputeTestCase(test.TrialTestCase):
         inst['instance_type'] = 'm1.tiny'
         inst['mac_address'] = utils.generate_mac()
         inst['ami_launch_index'] = 0
-        return db.instance_create(self.context, inst)
+        return db.instance_create(self.context, inst)['id']
 
     @defer.inlineCallbacks
     def test_run_terminate(self):
diff --git a/nova/tests/network_unittest.py b/nova/tests/network_unittest.py
index a89f1d62..9958600e 100644
--- a/nova/tests/network_unittest.py
+++ b/nova/tests/network_unittest.py
@@ -56,12 +56,12 @@ class NetworkTestCase(test.TrialTestCase):
                                                              name))
             # create the necessary network data for the project
             self.network.set_network_host(self.context, self.projects[i].id)
-        instance_id = db.instance_create(None,
+        instance_ref = db.instance_create(None,
                                          {'mac_address': utils.generate_mac()})
-        self.instance_id = instance_id
-        instance_id = db.instance_create(None,
+        self.instance_id = instance_ref['id']
+        instance_ref = db.instance_create(None,
                                          {'mac_address': utils.generate_mac()})
-        self.instance2_id = instance_id
+        self.instance2_id = instance_ref['id']
 
     def tearDown(self):  # pylint: disable-msg=C0103
         super(NetworkTestCase, self).tearDown()
diff --git a/nova/tests/quota_unittest.py b/nova/tests/quota_unittest.py
index bf3506c7..e3f23b84 100644
--- a/nova/tests/quota_unittest.py
+++ b/nova/tests/quota_unittest.py
@@ -65,7 +65,7 @@ class QuotaTestCase(test.TrialTestCase):
         inst['instance_type'] = 'm1.large'
         inst['vcpus'] = cores
         inst['mac_address'] = utils.generate_mac()
-        return db.instance_create(self.context, inst)
+        return db.instance_create(self.context, inst)['id']
 
     def _create_volume(self, size=10):
         """Create a test volume"""
diff --git a/nova/tests/service_unittest.py b/nova/tests/service_unittest.py
index 097a045e..01da0eb8 100644
--- a/nova/tests/service_unittest.py
+++ b/nova/tests/service_unittest.py
@@ -87,7 +87,7 @@ class ServiceTestCase(test.BaseTestCase):
                                        host,
                                        binary).AndRaise(exception.NotFound())
         service.db.service_create(None,
-                                  service_create).AndReturn(service_ref['id'])
+                                  service_create).AndReturn(service_ref)
         self.mox.ReplayAll()
 
         app = service.Service.create(host=host, binary=binary)
@@ -131,7 +131,7 @@ class ServiceTestCase(test.BaseTestCase):
                                       host,
                                       binary).AndRaise(exception.NotFound())
         service.db.service_create(None,
-                                  service_create).AndReturn(service_ref['id'])
+                                  service_create).AndReturn(service_ref)
         service.db.service_get(None, service_ref['id']).AndReturn(service_ref)
         service.db.service_update(None, service_ref['id'],
                                   mox.ContainsKeyValue('report_count', 1))
diff --git a/nova/tests/volume_unittest.py b/nova/tests/volume_unittest.py
index 9e35d2a1..1d665b50 100644
--- a/nova/tests/volume_unittest.py
+++ b/nova/tests/volume_unittest.py
@@ -108,7 +108,7 @@ class VolumeTestCase(test.TrialTestCase):
         inst['instance_type'] = 'm1.tiny'
         inst['mac_address'] = utils.generate_mac()
         inst['ami_launch_index'] = 0
-        instance_id = db.instance_create(self.context, inst)
+        instance_id = db.instance_create(self.context, inst)['id']
         mountpoint = "/dev/sdf"
         volume_id = self._create_volume()
         yield self.volume.create_volume(self.context, volume_id)