From 6c1afe11426410d7094e8aa7eb37412f62f0373e Mon Sep 17 00:00:00 2001
From: Jeremy Koritzinsky <jekoritz@microsoft.com>
Date: Wed, 14 Oct 2020 15:10:12 -0700
Subject: [PATCH] Fix comparison to intPtr.Zero. The current implementation is
 allowed by a Roslyn bug that's preserved for backcompat.

---
 WinRT.Runtime/Marshalers.cs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/WinRT.Runtime/Marshalers.cs b/WinRT.Runtime/Marshalers.cs
index b74c4e893..21de81f11 100644
--- a/WinRT.Runtime/Marshalers.cs
+++ b/WinRT.Runtime/Marshalers.cs
@@ -124,7 +124,7 @@ public void Dispose()
                         marshaler?.Dispose();
                     }
                 }
-                if (_array != null)
+                if (_array != IntPtr.Zero)
                 {
                     Marshal.FreeCoTaskMem(_array);
                 }
@@ -442,7 +442,7 @@ public void Dispose()
                         Marshaler<T>.DisposeMarshaler(marshaler);
                     }
                 }
-                if (_array != null)
+                if (_array != IntPtr.Zero)
                 {
                     Marshal.FreeCoTaskMem(_array);
                 }
@@ -624,7 +624,7 @@ public void Dispose()
                         DisposeMarshaler(marshaler);
                     }
                 }
-                if (_array != null)
+                if (_array != IntPtr.Zero)
                 {
                     Marshal.FreeCoTaskMem(_array);
                 }