From b2245307f2acfd7b62cf5d0c5b199c87c2d37b23 Mon Sep 17 00:00:00 2001
From: Sean Dewar <6256228+seandewar@users.noreply.github.com>
Date: Sun, 25 Feb 2024 01:15:30 +0000
Subject: vim-patch:9.1.0121: Infinite loop or signed overflow with
 'smoothscroll'

Problem:  infinite loop in win_update with 'smoothscroll' set when
          window width is equal to textoff, or signed integer overflow
          if smaller.
Solution: don't revalidate wp->w_skipcol in that case, as no buffer text
          is being shown. (Sean Dewar)

https://github.com/vim/vim/commit/02fcae02a926e4e8379d77fb716da4202029882d

Test_window_split_no_room changes were already cherry-picked earlier.
---
 src/nvim/drawscreen.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/nvim')

diff --git a/src/nvim/drawscreen.c b/src/nvim/drawscreen.c
index 1626e46cf6..402f7fa428 100644
--- a/src/nvim/drawscreen.c
+++ b/src/nvim/drawscreen.c
@@ -1513,7 +1513,7 @@ static void win_update(win_T *wp)
 
   // Make sure skipcol is valid, it depends on various options and the window
   // width.
-  if (wp->w_skipcol > 0) {
+  if (wp->w_skipcol > 0 && wp->w_width_inner > win_col_off(wp)) {
     int w = 0;
     int width1 = wp->w_width_inner - win_col_off(wp);
     int width2 = width1 + win_col_off2(wp);
-- 
cgit