From 3268de0edfaceeee41724ed05af26c4b0d2add1d Mon Sep 17 00:00:00 2001
From: Luke Pulverenti <luke.pulverenti@gmail.com>
Date: Thu, 28 Jan 2016 22:42:03 -0500
Subject: add null check to PeriodicTimer

---
 MediaBrowser.Common/Threading/PeriodicTimer.cs | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'MediaBrowser.Common/Threading')

diff --git a/MediaBrowser.Common/Threading/PeriodicTimer.cs b/MediaBrowser.Common/Threading/PeriodicTimer.cs
index cb562a80d..75ccada4e 100644
--- a/MediaBrowser.Common/Threading/PeriodicTimer.cs
+++ b/MediaBrowser.Common/Threading/PeriodicTimer.cs
@@ -14,6 +14,11 @@ namespace MediaBrowser.Common.Threading
 
         public PeriodicTimer(Action<object> callback, object state, TimeSpan dueTime, TimeSpan period)
         {
+            if (callback == null)
+            {
+                throw new ArgumentNullException("callback");
+            }
+
             Callback = callback;
             _period = period;
             _state = state;
-- 
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