process_tag: handle tag->tagged == NULL

Signed-off-by: Martin Koegler <mkoegler@auto.tuwien.ac.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/reachable.c b/reachable.c
index ddf39e556b964055419dfd92171f8277a7f7f0d9..11499a60c4202ba29b2dfc8bf1e6536343dfed4c 100644 (file)
--- a/reachable.c
+++ b/reachable.c
@@ -79,7 +79,8 @@ static void process_tag(struct tag *tag, struct object_array *p, const char *nam
 
        if (parse_tag(tag) < 0)
                die("bad tag object %s", sha1_to_hex(obj->sha1));
-       add_object(tag->tagged, p, NULL, name);
+       if (tag->tagged)
+               add_object(tag->tagged, p, NULL, name);
 }
 
 static void walk_commit_list(struct rev_info *revs)