From: Martin Koegler <mkoegler@auto.tuwien.ac.at>
Date: Mon, 18 Feb 2008 07:31:55 +0000 (+0100)
Subject: deref_tag: handle tag->tagged = NULL
X-Git-Tag: v1.5.5-rc0~195
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=24e8a3c946d158c977b67c346c21abc609c63209;p=git.git

deref_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/tag.c b/tag.c
index 38bf9134f..990134fe7 100644
--- a/tag.c
+++ b/tag.c
@@ -9,7 +9,10 @@ const char *tag_type = "tag";
 struct object *deref_tag(struct object *o, const char *warn, int warnlen)
 {
 	while (o && o->type == OBJ_TAG)
-		o = parse_object(((struct tag *)o)->tagged->sha1);
+		if (((struct tag *)o)->tagged)
+			o = parse_object(((struct tag *)o)->tagged->sha1);
+		else
+			o = NULL;
 	if (!o && warn) {
 		if (!warnlen)
 			warnlen = strlen(warn);