From: Stéphane Graber <stgraber@ubuntu.com>
Date: Mon, 26 Jan 2015 05:11:55 +0000 (-0500)
Subject: lua: fix crash on missing blkio
X-Git-Tag: lxc-1.1.0.rc3~2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ab35147cde2432d81f6752dc833979433d0fa76a;p=thirdparty%2Flxc.git

lua: fix crash on missing blkio

Closes: #403

Signed-off-by: Dwight Engen
Acked-by: Stéphane Graber <stgraber@ubuntu.com>
---

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