From 9f7f42ea0a4ba85aa27f9d8dc3833e854ce54703 Mon Sep 17 00:00:00 2001
From: Cédric Barreteau <>
Date: Tue, 7 Jul 2020 21:02:22 +0200
Subject: Prevent `flatten` from taking a null list

---
 src/nvim/eval/typval.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/nvim/eval/typval.c b/src/nvim/eval/typval.c
index d5db15afcc..e47403c656 100644
--- a/src/nvim/eval/typval.c
+++ b/src/nvim/eval/typval.c
@@ -648,7 +648,7 @@ tv_list_copy_error:
 ///
 /// @return OK or FAIL
 int tv_list_flatten(list_T *list, long maxdepth)
-  FUNC_ATTR_WARN_UNUSED_RESULT
+  FUNC_ATTR_NONNULL_ARG(1) FUNC_ATTR_WARN_UNUSED_RESULT
 {
   listitem_T *item;
   listitem_T *to_free;
-- 
cgit