From 4dad2e360c1c464feef9a8aaff6e96a7636c54b7 Mon Sep 17 00:00:00 2001
From: "Adrian C. (anrxc)" <anrxc@sysphere.org>
Date: Sun, 14 Mar 2010 03:37:40 +0100
Subject: API: missing warg should not break awesome

---
 widgets/dio.lua | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'widgets/dio.lua')

diff --git a/widgets/dio.lua b/widgets/dio.lua
index 9731d57..64a56e1 100644
--- a/widgets/dio.lua
+++ b/widgets/dio.lua
@@ -24,6 +24,8 @@ local unit = { ["s"] = 1, ["kb"] = 2, ["mb"] = 2048 }
 
 -- {{{ Disk I/O widget type
 local function worker(format, disk)
+    if not disk then return end
+
     local disk_lines = { [disk] = {} }
     local disk_stats = helpers.pathtotable("/sys/block/" .. disk)
     local disk_queue = helpers.pathtotable("/sys/block/" .. disk .. "/queue")
-- 
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