From: René Scharfe <l.s.r@web.de>
Date: Sun, 11 Oct 2020 16:03:40 +0000 (+0200)
Subject: line-log: handle deref_tag() returning NULL
X-Git-Tag: v2.30.0-rc0~156^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=5eb2ed691b809a55b024b8c10739254ea2ac48b7;p=thirdparty%2Fgit.git

line-log: handle deref_tag() returning NULL

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---

diff --git a/line-log.c b/line-log.c
index 68eeb425f8..75c8b1acff 100644
--- a/line-log.c
+++ b/line-log.c
@@ -481,7 +481,7 @@ static struct commit *check_single_commit(struct rev_info *revs)
 		if (obj->flags & UNINTERESTING)
 			continue;
 		obj = deref_tag(revs->repo, obj, NULL, 0);
-		if (obj->type != OBJ_COMMIT)
+		if (!obj || obj->type != OBJ_COMMIT)
 			die("Non commit %s?", revs->pending.objects[i].name);
 		if (commit)
 			die("More than one commit to dig from: %s and %s?",