notes: avoid leaking duplicate entries

When add_note is called multiple times with the same key/value pair, the leaf_node it creates is leaked by notes_tree_insert. Signed-off-by: Mike Hommey <mh@glandium.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Mike Hommey committed Aug 25, 2019 at 14:18 UTC 779ad6641b9a6443eaec75439b3374b1a7b8794c
1 file changed +3 -1
notes.c
+3 -1
@@ -269,8 +269,10 @@ static int note_tree_insert(struct notes_tree *t, struct int_node *tree,
269 case PTR_TYPE_NOTE:
270 if (oideq(&l->key_oid, &entry->key_oid)) {
271 /* skip concatenation if l == entry */
272 - if (oideq(&l->val_oid, &entry->val_oid))
272 + if (oideq(&l->val_oid, &entry->val_oid)) {
273 + free(entry);
274 return 0;
275 + }
276
277 ret = combine_notes(&l->val_oid,
278 &entry->val_oid);