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-rw-r--r--widgets/dio.lua2
1 files changed, 2 insertions, 0 deletions
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")