From 23c2cb25b699819ef4d9f7d470e8c639b19333fb Mon Sep 17 00:00:00 2001
From: Dietmar Maurer <dietmar@proxmox.com>
Date: Fri, 17 Jan 2014 09:16:00 +0100
Subject: [PATCH] avoid unnecessary warning

---
 PVE/RADOS.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/PVE/RADOS.pm b/PVE/RADOS.pm
index d379450..f607fea 100644
--- a/PVE/RADOS.pm
+++ b/PVE/RADOS.pm
@@ -74,7 +74,7 @@ sub mon_command {
     my $json = encode_json($cmd);
     my $raw = pve_rados_mon_command($self->{conn}, [ $json ]);
     if ($cmd->{format} && $cmd->{format} eq 'json') {
-	return decode_json($raw);
+	return length($raw) ? decode_json($raw) : undef;
     }
     return $raw;
 }
-- 
2.39.2