1 files changed, 3 insertions, 3 deletions
diff --git a/synapse/util/caches/deferred_cache.py b/synapse/util/caches/deferred_cache.py
index 6425f851ea..bf7bd351e0 100644
--- a/synapse/util/caches/deferred_cache.py
+++ b/synapse/util/caches/deferred_cache.py
@@ -153,7 +153,7 @@ class DeferredCache(Generic[KT, VT]):
         Args:
             key:
             callback: Gets called when the entry in the cache is invalidated
-            update_metrics (bool): whether to update the cache hit rate metrics
+            update_metrics: whether to update the cache hit rate metrics
 
         Returns:
             A Deferred which completes with the result. Note that this may later fail
@@ -395,8 +395,8 @@ class DeferredCache(Generic[KT, VT]):
             # _pending_deferred_cache.pop should either return a CacheEntry, or, in the
             # case of a TreeCache, a dict of keys to cache entries. Either way calling
             # iterate_tree_cache_entry on it will do the right thing.
-            for entry in iterate_tree_cache_entry(entry):
-                for cb in entry.get_invalidation_callbacks(key):
+            for iter_entry in iterate_tree_cache_entry(entry):
+                for cb in iter_entry.get_invalidation_callbacks(key):
                     cb()
 
     def invalidate_all(self) -> None: