check whether backend_config is None or not before accessing its attr

InternLM · Dec 3, 2024 · e6e4c22 · e6e4c22
1 parent 8fbfed6
commit e6e4c22
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lmdeploy/api.py b/lmdeploy/api.py
@@ -71,7 +71,7 @@ def pipeline(model_path: str,
 
     task, pipeline_class = get_task(model_path)
     if task == 'vlm':
-        if backend_config.enable_prefix_caching:
+        if backend_config and backend_config.enable_prefix_caching:
             backend_config.enable_prefix_caching = False
             logger.warning('VLM does not support prefix caching.')