[PATCH 2/3] deref_tag: handle tag->tagged = NULL

From: Martin Koegler <mkoegler@auto.tuwien.ac.at>
Date: Feb 18, 2008, 07:31 UTC
Message-ID: <1203319916670-git-send-email-mkoegler@auto.tuwien.ac.at>
In-Reply-To: <12033199162949-git-send-email-mkoegler@auto.tuwien.ac.at>

Signed-off-by: Martin Koegler <mkoegler@auto.tuwien.ac.at>
---
 tag.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/tag.c b/tag.c
index 38bf913..990134f 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);

-- 
1.5.4.1.gaf0ae