From ca100ff2d13b0bf885826e02e7c1ed6a4496694e Mon Sep 17 00:00:00 2001
From: Luke Pulverenti <luke.pulverenti@gmail.com>
Date: Mon, 30 May 2016 12:22:31 -0400
Subject: add null checks on session & device creation

---
 MediaBrowser.Server.Implementations/Session/SessionManager.cs | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'MediaBrowser.Server.Implementations/Session/SessionManager.cs')

diff --git a/MediaBrowser.Server.Implementations/Session/SessionManager.cs b/MediaBrowser.Server.Implementations/Session/SessionManager.cs
index 0dabcac4b..4386b785a 100644
--- a/MediaBrowser.Server.Implementations/Session/SessionManager.cs
+++ b/MediaBrowser.Server.Implementations/Session/SessionManager.cs
@@ -404,6 +404,10 @@ namespace MediaBrowser.Server.Implementations.Session
         /// <returns>SessionInfo.</returns>
         private async Task<SessionInfo> GetSessionInfo(string appName, string appVersion, string deviceId, string deviceName, string remoteEndPoint, User user)
         {
+            if (string.IsNullOrWhiteSpace(deviceId))
+            {
+                throw new ArgumentNullException("deviceId");
+            }
             var key = GetSessionKey(appName, deviceId);
 
             await _sessionLock.WaitAsync(CancellationToken.None).ConfigureAwait(false);
-- 
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