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-rw-r--r--synapse/storage/databases/main/lock.py6
1 files changed, 1 insertions, 5 deletions
diff --git a/synapse/storage/databases/main/lock.py b/synapse/storage/databases/main/lock.py
index 3d1dff660b..774861074c 100644
--- a/synapse/storage/databases/main/lock.py
+++ b/synapse/storage/databases/main/lock.py
@@ -78,11 +78,7 @@ class LockStore(SQLBaseStore):
         """Called when the server is shutting down"""
         logger.info("Dropping held locks due to shutdown")
 
-        # We need to take a copy of the tokens dict as dropping the locks will
-        # cause the dictionary to change.
-        tokens = dict(self._live_tokens)
-
-        for (lock_name, lock_key), token in tokens.items():
+        for (lock_name, lock_key), token in self._live_tokens.items():
             await self._drop_lock(lock_name, lock_key, token)
 
         logger.info("Dropped locks due to shutdown")