Function cleanup

http-walker.c:577–603

}

static void cleanup(struct walker *walker)
{
	struct walker_data *data = walker->data;
	struct alt_base *alt, *alt_next;

	if (data) {
		alt = data->alt;
		while (alt) {
			struct packfile_list_entry *e;

			alt_next = alt->next;

			for (e = alt->packs.head; e; e = e->next) {
				close_pack(e->pack);
				free(e->pack);
			}
			packfile_list_clear(&alt->packs);

			free(alt->base);
			free(alt);

			alt = alt_next;
		}
		free(data);
		walker->data = NULL;
	}
}

struct walker *get_http_walker(const char *url)
{