1 files changed, 10 insertions, 2 deletions
diff --git a/scripts/block-coroutine-wrapper.py b/scripts/block-coroutine-wrapper.py
index 85dbeb9ecf..08be813407 100644
--- a/scripts/block-coroutine-wrapper.py
+++ b/scripts/block-coroutine-wrapper.py
@@ -100,12 +100,20 @@ def snake_to_camel(func_name: str) -> str:
 def gen_wrapper(func: FuncDecl) -> str:
     assert not '_co_' in func.name
     assert func.return_type == 'int'
-    assert func.args[0].type in ['BlockDriverState *', 'BdrvChild *']
+    assert func.args[0].type in ['BlockDriverState *', 'BdrvChild *',
+                                 'BlockBackend *']
 
     subsystem, subname = func.name.split('_', 1)
 
     name = f'{subsystem}_co_{subname}'
-    bs = 'bs' if func.args[0].type == 'BlockDriverState *' else 'child->bs'
+
+    t = func.args[0].type
+    if t == 'BlockDriverState *':
+        bs = 'bs'
+    elif t == 'BdrvChild *':
+        bs = 'child->bs'
+    else:
+        bs = 'blk_bs(blk)'
     struct_name = snake_to_camel(name)
 
     return f"""\