Ensure last_update is initialized before used
Closes-Bug:
@@ -216,6 +216,7 @@ class BaseVIFPool(base.VIFPoolDriver):
# from the pool_key, which will be required when multi-network is
# supported
now = time.time()
+ last_update = 0
pool_updates = self._last_update.get(pool_key)
if pool_updates:
last_update = pool_updates.get(security_groups, 0)
