From 40bbdd90f720d1ee84504e5bb2b795cd4b6e0247 Mon Sep 17 00:00:00 2001
From: Krzysztof Wicher <mordotymoja@gmail.com>
Date: Mon, 1 Apr 2019 16:23:52 -0700
Subject: [PATCH] Change PermissionSet.SyncRoot to return this instead of null
 (#23631)

Signed-off-by: dotnet-bot <dotnet-bot@microsoft.com>
---
 src/Common/src/CoreLib/System/Security/PermissionSet.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Common/src/CoreLib/System/Security/PermissionSet.cs b/src/Common/src/CoreLib/System/Security/PermissionSet.cs
index 9de469d938c6..60ef88656ed0 100644
--- a/src/Common/src/CoreLib/System/Security/PermissionSet.cs
+++ b/src/Common/src/CoreLib/System/Security/PermissionSet.cs
@@ -18,7 +18,7 @@ public PermissionSet(PermissionSet permSet) { }
         public virtual int Count { get { return 0; } }
         public virtual bool IsReadOnly { get { return false; } }
         public virtual bool IsSynchronized { get { return false; } }
-        public virtual object SyncRoot { get { return null; } }
+        public virtual object SyncRoot { get { return this; } }
         public IPermission AddPermission(IPermission perm) { return AddPermissionImpl(perm); }
         protected virtual IPermission AddPermissionImpl(IPermission perm) { return default(IPermission); }
         public void Assert() { }