Add type ignore unused-awaitable to places adding callbacks to a deffered

1 files changed, 1 insertions, 1 deletions

diff --git a/synapse/logging/opentracing.py b/synapse/logging/opentracing.py

index b69060854f..180061c99e 100644
--- a/synapse/logging/opentracing.py
+++ b/synapse/logging/opentracing.py
@@ -908,7 +908,7 @@ def _custom_sync_async_decorator(
                         scope.__exit__(None, None, None)
                         return result
 
-                    result.addCallbacks(call_back, err_back)
+                    result.addCallbacks(call_back, err_back) # type: ignore[unused-awaitable]
 
                 else:
                     if inspect.isawaitable(result):