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-rw-r--r--include/qapi/visitor.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/include/qapi/visitor.h b/include/qapi/visitor.h
index 74768aa..fe9faf4 100644
--- a/include/qapi/visitor.h
+++ b/include/qapi/visitor.h
@@ -618,10 +618,10 @@ void visit_type_any(Visitor *v, const char *name, QObject **obj, Error **errp);
* @name expresses the relationship of the null value to its parent
* container; see the general description of @name above.
*
- * Unlike all other visit_type_* functions, no obj parameter is
- * needed; rather, this is a witness that an explicit null value is
- * expected rather than any other type.
+ * @obj must be non-NULL. Input visitors set *@obj to the value;
+ * other visitors ignore *@obj.
*/
-void visit_type_null(Visitor *v, const char *name, Error **errp);
+void visit_type_null(Visitor *v, const char *name, QNull **obj,
+ Error **errp);
#endif