patch 8.0.0968: crash when switching terminal modes
Problem: Crash when switching terminal modes. (Nikolai Pavlov)
Solution: Check that there are scrollback lines.
diff --git a/src/terminal.c b/src/terminal.c
index 6b401be..bb2dba9 100644
--- a/src/terminal.c
+++ b/src/terminal.c
@@ -1037,14 +1037,13 @@
/* Remove the terminal contents from the scrollback and the buffer. */
gap = &term->tl_scrollback;
- while (curbuf->b_ml.ml_line_count > term->tl_scrollback_scrolled)
+ while (curbuf->b_ml.ml_line_count > term->tl_scrollback_scrolled
+ && gap->ga_len > 0)
{
ml_delete(curbuf->b_ml.ml_line_count, FALSE);
line = (sb_line_T *)gap->ga_data + gap->ga_len - 1;
vim_free(line->sb_cells);
--gap->ga_len;
- if (gap->ga_len == 0)
- break;
}
check_cursor();