Fix infinite loop in DiscoveryMessageSequence equality comparison.

1 files changed, 2 insertions, 2 deletions

diff --git a/mcs/class/System.ServiceModel.Discovery/System.ServiceModel.Discovery/DiscoveryMessageSequence.cs b/mcs/class/System.ServiceModel.Discovery/System.ServiceModel.Discovery/DiscoveryMessageSequence.cs
index 167838da270..007a7701390 100755
--- a/mcs/class/System.ServiceModel.Discovery/System.ServiceModel.Discovery/DiscoveryMessageSequence.cs
+++ b/mcs/class/System.ServiceModel.Discovery/System.ServiceModel.Discovery/DiscoveryMessageSequence.cs
@@ -84,12 +84,12 @@ namespace System.ServiceModel.Discovery
 
 		public static bool operator == (DiscoveryMessageSequence messageSequence1, DiscoveryMessageSequence messageSequence2)
 		{
-			return messageSequence1 != null ? messageSequence1.Equals (messageSequence2) : messageSequence2 == null;
+			return object.ReferenceEquals (messageSequence1, null) ? object.ReferenceEquals (messageSequence2, null) : messageSequence1.Equals (messageSequence2);
 		}
 
 		public static bool operator != (DiscoveryMessageSequence messageSequence1, DiscoveryMessageSequence messageSequence2)
 		{
-			return messageSequence1 == null ? messageSequence2 != null : !messageSequence1.Equals (messageSequence2);
+			return object.ReferenceEquals (messageSequence1, null) ? !object.ReferenceEquals (messageSequence2, null) : !messageSequence1.Equals (messageSequence2);
 		}
 
 		internal static DiscoveryMessageSequence ReadXml (XmlReader reader, DiscoveryVersion version)