diff options
author | Jeff King <peff@peff.net> | 2023-04-22 16:55:43 +0300 |
---|---|---|
committer | Junio C Hamano <gitster@pobox.com> | 2023-04-24 21:09:13 +0300 |
commit | ae6f064fd7f0925cc8985769750a1367a4c24194 (patch) | |
tree | e202f02d7e40bd369d63a608330955422112b767 /notes.c | |
parent | 7580f92ffa970b9484ac214f7b53cec5e26ca4bc (diff) |
notes: clean up confusing NULL checks in init_notes()
Coverity complains that we check whether "notes_ref" is NULL, but it was
already implied to be non-NULL earlier in the function. And this is
true; since b9342b3fd63 (refs: add array of ref namespaces, 2022-08-05),
we call xstrdup(notes_ref) unconditionally, which would segfault if it
was NULL.
But that commit is actually doing the right thing. Even if NULL is
passed into the function, we'll use default_notes_ref() as a fallback,
which will never return NULL (it tries a few options, but its last
resort is a string literal). Ironically, the "!notes_ref" check was
added by the same commit that added the fallback: 709f79b0894 (Notes
API: init_notes(): Initialize the notes tree from the given notes ref,
2010-02-13). So this check never did anything.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'notes.c')
-rw-r--r-- | notes.c | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -1019,13 +1019,13 @@ void init_notes(struct notes_tree *t, const char *notes_ref, t->root = (struct int_node *) xcalloc(1, sizeof(struct int_node)); t->first_non_note = NULL; t->prev_non_note = NULL; - t->ref = xstrdup_or_null(notes_ref); + t->ref = xstrdup(notes_ref); t->update_ref = (flags & NOTES_INIT_WRITABLE) ? t->ref : NULL; t->combine_notes = combine_notes; t->initialized = 1; t->dirty = 0; - if (flags & NOTES_INIT_EMPTY || !notes_ref || + if (flags & NOTES_INIT_EMPTY || repo_get_oid_treeish(the_repository, notes_ref, &object_oid)) return; if (flags & NOTES_INIT_WRITABLE && read_ref(notes_ref, &object_oid)) |