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vim-patch:9.1.1023: Coverity complains about dereferencing NULL pointer

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Problem:  Coverity complains about dereferencing NULL pointer
Solution: Verify curdiff is not null before dereferencing it

closes: vim/vim#16437

a9f77be922

Co-authored-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
zeertzjq
2025-02-03 22:26:05 +08:00
parent 1c3bda7e92
commit 4d0c6cae72
1 changed files with 4 additions and 2 deletions
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6
src/nvim/diff.c
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@@ -1866,8 +1866,10 @@ static void count_filler_lines_and_topline(int *curlinenum_to, int *linesfiller,
} }
} else { } else {
(*linesfiller) = 0; (*linesfiller) = 0;
ch_virtual_lines = get_max_diff_length(curdif); if (curdif) {
isfiller = (curdif->df_count[toidx] ? false : true); ch_virtual_lines = get_max_diff_length(curdif);
isfiller = (curdif->df_count[toidx] ? false : true);
}
if (isfiller) { if (isfiller) {
while (curdif && curdif->df_next && curdif->df_lnum[toidx] == while (curdif && curdif->df_next && curdif->df_lnum[toidx] ==
curdif->df_next->df_lnum[toidx] curdif->df_next->df_lnum[toidx]