python: fix the leftover cs_close()
diff --git a/bindings/python/capstone/capstone.py b/bindings/python/capstone/capstone.py
index 8f0343e..cbbe4d9 100644
--- a/bindings/python/capstone/capstone.py
+++ b/bindings/python/capstone/capstone.py
@@ -318,7 +318,7 @@
         return
         yield
 
-    status = _cs.cs_close(csh)
+    status = _cs.cs_close(ctypes.byref(csh))
     if status != CS_ERR_OK:
         raise CsError(status)