From 8f70a7657a9b459d6a4a3bcb1628c0fa6a6c22e0 Mon Sep 17 00:00:00 2001
From: Alex Riesen <raa.lkml@gmail.com>
Date: Fri, 12 Oct 2007 22:40:04 +0200
Subject: [PATCH] Fix a crash in ls-remote when refspec expands into nothing
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Originally-by: Väinö Järvelä <v@pp.inet.fi>
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
---
 remote.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/remote.c b/remote.c
index e2ca4d32b..b20e2be43 100644
--- a/remote.c
+++ b/remote.c
@@ -909,7 +909,8 @@ int get_fetch_map(struct ref *remote_refs,
 			    rm->peer_ref->name);
 	}
 
-	tail_link_ref(ref_map, tail);
+	if (ref_map)
+		tail_link_ref(ref_map, tail);
 
 	return 0;
 }
-- 
2.30.2