From 8ecd453efe4f41429d04dcc78b902d15ed9a00ce Mon Sep 17 00:00:00 2001
From: catborise <catborise@yahoo.com>
Date: Mon, 5 Nov 2018 15:19:25 +0300
Subject: [PATCH] fix: initialize used_size variable. it causes error if
 instance disks are deleted.

---
 vrtManager/instance.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/vrtManager/instance.py b/vrtManager/instance.py
index eb38096..681e192 100644
--- a/vrtManager/instance.py
+++ b/vrtManager/instance.py
@@ -252,8 +252,9 @@ class wvmInstance(wvmConnect):
             storage = None
             src_fl = None
             disk_format = None
+            used_size = None
             disk_size = None
-
+            
             for disk in doc.xpath('/domain/devices/disk'):
                 device = disk.xpath('@device')[0]
                 if device == 'disk':