cache-tree.c::cache_tree_find(): simplify internal API

Earlier cache_tree_find() needs to be called with a valid cache_tree, but repeated look-up may find an invalid or missing cache_tree in between. Help simplify the callers by returning NULL to mean "nothing appropriate found" when the input is NULL. Signed-off-by: Junio C Hamano <gitster@pobox.com>

Junio C Hamano committed May 20, 2009 at 15:53 UTC b87fc96476c4218de044cf77b4c6d10d49aee78a

1 file changed +2

cache-tree.c

@@ -514,6 +514,8 @@ struct cache_tree *cache_tree_read(const char *buffer, unsigned long size)

514

515 static struct cache_tree *cache_tree_find(struct cache_tree *it, const char *path)

516 {

517 + if (!it)

518 + return NULL;

519 while (*path) {

520 const char *slash;

521 struct cache_tree_sub *sub;