From: Martin Koegler <mkoegler@auto.tuwien.ac.at>
Date: Mon, 18 Feb 2008 20:48:01 +0000 (+0100)
Subject: revision.c: handle tag->tagged == NULL
X-Git-Tag: v1.5.5-rc0~93^2~13
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=9684afd967f61047bbf1b3a8039adf7d41916b31;p=git.git

revision.c: 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/revision.c b/revision.c
index 484e5e795..b1aebf899 100644
--- a/revision.c
+++ b/revision.c
@@ -177,6 +177,8 @@ static struct commit *handle_commit(struct rev_info *revs, struct object *object
 		struct tag *tag = (struct tag *) object;
 		if (revs->tag_objects && !(flags & UNINTERESTING))
 			add_pending_object(revs, object, tag->tag);
+		if (!tag->tagged)
+			die("bad tag");
 		object = parse_object(tag->tagged->sha1);
 		if (!object)
 			die("bad object %s", sha1_to_hex(tag->tagged->sha1));
@@ -689,6 +691,8 @@ static int add_parents_only(struct rev_info *revs, const char *arg, int flags)
 		it = get_reference(revs, arg, sha1, 0);
 		if (it->type != OBJ_TAG)
 			break;
+		if (!((struct tag*)it)->tagged)
+			return 0;
 		hashcpy(sha1, ((struct tag*)it)->tagged->sha1);
 	}
 	if (it->type != OBJ_COMMIT)