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vim-patch:8.2.1702: crash when using undo after deleting folded lines

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Problem:    Crash when using undo after deleting folded lines.
Solution:   Check for NULL pointer. (closes vim/vim#6968)
da697645d5
This commit is contained in:
Jan Edmund Lazo
2021-06-10 08:27:18 -04:00
parent 292037ef9b
commit cb368e1bff
2 changed files with 23 additions and 2 deletions
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5
src/nvim/fold.c
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@@ -2227,8 +2227,9 @@ static linenr_T foldUpdateIEMSRecurse(
if (getlevel == foldlevelMarker && flp->start <= flp->lvl - level
&& flp->lvl > 0) {
(void)foldFind(gap, startlnum - 1, &fp);
if (fp >= ((fold_T *)gap->ga_data) + gap->ga_len
|| fp->fd_top >= startlnum) {
if (fp != NULL
&& (fp >= ((fold_T *)gap->ga_data) + gap->ga_len
|| fp->fd_top >= startlnum)) {
fp = NULL;
}
}