From ab35147cde2432d81f6752dc833979433d0fa76a Mon Sep 17 00:00:00 2001
From: =?utf8?q?St=C3=A9phane=20Graber?= <stgraber@ubuntu.com>
Date: Mon, 26 Jan 2015 00:11:55 -0500
Subject: [PATCH] lua: fix crash on missing blkio
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Closes: #403

Signed-off-by: Dwight Engen
Acked-by: Stéphane Graber <stgraber@ubuntu.com>
---
 src/lua-lxc/lxc.lua | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/lua-lxc/lxc.lua b/src/lua-lxc/lxc.lua
index 6f8583ab3..122a4823b 100755
--- a/src/lua-lxc/lxc.lua
+++ b/src/lua-lxc/lxc.lua
@@ -275,6 +275,10 @@ function container:stat_match_get_int(item, match, column)
     local val
     local lines = self:get_cgroup_item(item)
 
+    if (lines == nil) then
+       return 0
+    end
+
     for line in lines:gmatch("[^\r\n]+") do
 	if (string.find(line, match)) then
 	    local col
-- 
2.47.2