[PATCH v6 1/3] ls_files.c: bugfix for --deleted and --modified

["ZheNing Hu via GitGitGadget" <gitgitgadget@gmail.com>]

From: ZheNing Hu <adlternative@gmail.com>

This situation may occur in the original code: lstat() failed
but we use `&st` to feed ie_modified() later.

Therefore, we can directly execute show_ce without the judgment of
ie_modified() when lstat() has failed.

Signed-off-by: ZheNing Hu <adlternative@gmail.com>
---
 builtin/ls-files.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/builtin/ls-files.c b/builtin/ls-files.c
index c8eae899b82..1e264bd1329 100644
--- a/builtin/ls-files.c
+++ b/builtin/ls-files.c
@@ -335,7 +335,7 @@ static void show_files(struct repository *repo, struct dir_struct *dir)
 		for (i = 0; i < repo->index->cache_nr; i++) {
 			const struct cache_entry *ce = repo->index->cache[i];
 			struct stat st;
-			int err;
+			int stat_err;
 
 			construct_fullname(&fullname, repo, ce);
 
@@ -346,11 +346,14 @@ static void show_files(struct repository *repo, struct dir_struct *dir)
 				continue;
 			if (ce_skip_worktree(ce))
 				continue;
-			err = lstat(fullname.buf, &st);
-			if (show_deleted && err)
+			stat_err = lstat(fullname.buf, &st);
+			if (stat_err && (errno != ENOENT && errno != ENOTDIR))
+				error_errno("cannot lstat '%s'", fullname.buf);
+			if (stat_err && show_deleted)
 				show_ce(repo, dir, ce, fullname.buf, tag_removed);
-			if (show_modified && ie_modified(repo->index, ce, &st, 0))
-				show_ce(repo, dir, ce, fullname.buf, tag_modified);
+			if (show_modified &&
+				(stat_err || ie_modified(repo->index, ce, &st, 0)))
+					show_ce(repo, dir, ce, fullname.buf, tag_modified);
 		}
 	}
 
-- 
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