Fix potential issue with output stream on SendBufferAsync (#79)

nanoframework · Nov 3, 2017 · e3bd5c9 · e3bd5c9
1 parent 55f68e7
commit e3bd5c9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/source/nanoFramework.Tools.DebugLibrary.Shared/PortSerial/SerialPort.cs b/source/nanoFramework.Tools.DebugLibrary.Shared/PortSerial/SerialPort.cs
@@ -589,7 +589,7 @@ public async Task<uint> SendBufferAsync(byte[] buffer, TimeSpan waiTimeout, Canc
                 finally
                 {
                     // detach stream
-                    outputStreamWriter.DetachStream();
+                    outputStreamWriter?.DetachStream();
                     outputStreamWriter = null;
                 }
             }