diff --git a/tempest/services/volume/xml/admin/volume_types_client.py b/tempest/services/volume/xml/admin/volume_types_client.py
index ba4ba67..49cbadb 100644
--- a/tempest/services/volume/xml/admin/volume_types_client.py
+++ b/tempest/services/volume/xml/admin/volume_types_client.py
@@ -149,11 +149,16 @@
         url = "types/%s/extra_specs" % str(vol_type_id)
         extra_specs = Element("extra_specs", xmlns=XMLNS_11)
         if extra_spec:
-            for key, value in extra_spec.items():
-                spec = Element('extra_spec')
-                spec.add_attr('key', key)
-                spec.append(Text(value))
-                extra_specs.append(spec)
+            if isinstance(extra_spec, list):
+                extra_specs.append(extra_spec)
+            else:
+                for key, value in extra_spec.items():
+                    spec = Element('extra_spec')
+                    spec.add_attr('key', key)
+                    spec.append(Text(value))
+                    extra_specs.append(spec)
+        else:
+            extra_specs = None
 
         resp, body = self.post(url, str(Document(extra_specs)),
                                self.headers)
diff --git a/tempest/tests/volume/admin/test_volume_types_extra_specs_negative.py b/tempest/tests/volume/admin/test_volume_types_extra_specs_negative.py
index 6b274c6..f528cec 100644
--- a/tempest/tests/volume/admin/test_volume_types_extra_specs_negative.py
+++ b/tempest/tests/volume/admin/test_volume_types_extra_specs_negative.py
@@ -79,14 +79,12 @@
                           self.client.create_volume_type_extra_specs,
                           str(uuid.uuid4()), extra_specs)
 
-    @testtools.skip('Until bug 1090322 is fixed')
     def test_create_none_body(self):
         # Should not create volume type extra spec for none POST body.
         self.assertRaises(exceptions.BadRequest,
                           self.client.create_volume_type_extra_specs,
                           self.volume_type['id'], None)
 
-    @testtools.skip('Until bug 1090322 is fixed')
     def test_create_invalid_body(self):
         # Should not create volume type extra spec for invalid POST body.
         self.assertRaises(exceptions.BadRequest,
diff --git a/tempest/tests/volume/admin/test_volume_types_negative.py b/tempest/tests/volume/admin/test_volume_types_negative.py
index c706f3d..1b11d68 100644
--- a/tempest/tests/volume/admin/test_volume_types_negative.py
+++ b/tempest/tests/volume/admin/test_volume_types_negative.py
@@ -32,7 +32,6 @@
                           display_name=str(uuid.uuid4()),
                           volume_type=str(uuid.uuid4()))
 
-    @testtools.skip('Until bug 1090356 is fixed')
     def test_create_with_empty_name(self):
         # Should not be able to create volume type with an empty name.
         self.assertRaises(exceptions.BadRequest,