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-rw-r--r--synapse/handlers/device.py8
1 files changed, 5 insertions, 3 deletions
diff --git a/synapse/handlers/device.py b/synapse/handlers/device.py
index 93472d0117..1af6d77545 100644
--- a/synapse/handlers/device.py
+++ b/synapse/handlers/device.py
@@ -396,15 +396,17 @@ class DeviceWorkerHandler:
         up_to_stream_id = task.params["up_to_stream_id"]
 
         # Delete the messages in batches to avoid too much DB load.
+        from_stream_id = None
         while True:
-            res = await self.store.delete_messages_for_device(
+            from_stream_id, _ = await self.store.delete_messages_for_device_between(
                 user_id=user_id,
                 device_id=device_id,
-                up_to_stream_id=up_to_stream_id,
+                from_stream_id=from_stream_id,
+                to_stream_id=up_to_stream_id,
                 limit=DeviceHandler.DEVICE_MSGS_DELETE_BATCH_LIMIT,
             )
 
-            if res < DeviceHandler.DEVICE_MSGS_DELETE_BATCH_LIMIT:
+            if from_stream_id is None:
                 return TaskStatus.COMPLETE, None, None
 
             await self.clock.sleep(DeviceHandler.DEVICE_MSGS_DELETE_SLEEP_MS / 1000.0)