Protect peel_ref fallback case from NULL parse_object result
If the SHA-1 we are requesting the object for does not exist in
the object database we get a NULL back. Accessing the type from
that is not likely to succeed on any system.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/refs.c b/refs.c
index 67d2a50..fb33da1 100644
--- a/refs.c
+++ b/refs.c
@@ -506,7 +506,7 @@
/* fallback - callers should not call this for unpacked refs */
o = parse_object(base);
- if (o->type == OBJ_TAG) {
+ if (o && o->type == OBJ_TAG) {
o = deref_tag(o, ref, 0);
if (o) {
hashcpy(sha1, o->sha1);
