diff --git a/mm/migrate.c b/mm/migrate.c
index 46fe8cc13d67f3acf80653434223577084fd8fcf..9f29a3b7aac2242c511b8a783226c247af301993 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -888,7 +888,7 @@ static int unmap_and_move_huge_page(new_page_t get_new_page,
  * are movable anymore because to has become empty
  * or no retryable pages exist anymore.
  * Caller should call putback_lru_pages to return pages to the LRU
- * or free list.
+ * or free list only if ret != 0.
  *
  * Return: Number of pages not migrated or error code.
  */