diff --git a/staslib/service.py b/staslib/service.py
index 19acec3..8a10ada 100644
--- a/staslib/service.py
+++ b/staslib/service.py
@@ -809,11 +809,7 @@ def _config_ctrls_finish(self, configured_ctrl_list: list):
             origin = (
                 'configured'
                 if tid in configured_ctrl_list
-                else 'referral'
-                if tid in referral_ctrl_list
-                else 'discovered'
-                if tid in discovered_ctrl_list
-                else None
+                else 'referral' if tid in referral_ctrl_list else 'discovered' if tid in discovered_ctrl_list else None
             )
             if origin is not None:
                 controller.origin = origin
diff --git a/test/test-udev.py b/test/test-udev.py
index 9621edc..2f29471 100755
--- a/test/test-udev.py
+++ b/test/test-udev.py
@@ -200,8 +200,7 @@ def get_tids_to_test(family, src_ip, ifname):
     ]
 
 
-class DummyDevice:
-    ...
+class DummyDevice: ...
 
 
 class Test(unittest.TestCase):