From 4bb01262ca8644ff62bb37b40d5f0ccebadcc1fb Mon Sep 17 00:00:00 2001
From: zeertzjq <zeertzjq@outlook.com>
Date: Thu, 7 Jul 2022 07:51:50 +0800
Subject: vim-patch:8.2.3674: when ml_get_buf() fails it messes up IObuff

Problem:    When ml_get_buf() fails it messes up IObuff.
Solution:   Return a local pointer. (closes vim/vim#9214)
https://github.com/vim/vim/commit/96e7a5928e1e7a350cd6c6d0b9376305190046e7
---
 src/nvim/memline.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'src/nvim/memline.c')

diff --git a/src/nvim/memline.c b/src/nvim/memline.c
index 1c54035a9e..74608e75ad 100644
--- a/src/nvim/memline.c
+++ b/src/nvim/memline.c
@@ -1834,6 +1834,7 @@ char_u *ml_get_buf(buf_T *buf, linenr_T lnum, bool will_change)
   DATA_BL *dp;
   char_u *ptr;
   static int recursive = 0;
+  static char_u questions[4];
 
   if (lnum > buf->b_ml.ml_line_count) {  // invalid line number
     if (recursive == 0) {
@@ -1844,8 +1845,8 @@ char_u *ml_get_buf(buf_T *buf, linenr_T lnum, bool will_change)
       recursive--;
     }
 errorret:
-    STRCPY(IObuff, "???");
-    return IObuff;
+    STRCPY(questions, "???");
+    return questions;
   }
   if (lnum <= 0) {                      // pretend line 0 is line 1
     lnum = 1;
-- 
cgit