From 719afa804522fccf9e6831aa4effcffd6567a246 Mon Sep 17 00:00:00 2001
From: Chris Reed <flit@me.com>
Date: Mon, 27 Apr 2020 12:23:31 -0500
Subject: [PATCH] Handle invalid RTX5 thread state in description property.

Fixes #857.
---
 pyocd/rtos/rtx5.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pyocd/rtos/rtx5.py b/pyocd/rtos/rtx5.py
index b26e3e3a4..911a222d6 100644
--- a/pyocd/rtos/rtx5.py
+++ b/pyocd/rtos/rtx5.py
@@ -209,7 +209,7 @@ def read_core_registers_raw(self, reg_list):
         return reg_vals
 
 class RTXTargetThread(TargetThread):
-    """! @brief Base class representing a thread on the target."""
+    """! @brief Represents an RTX5 thread on the target."""
 
     STATE_OFFSET = 1
     NAME_OFFSET = 4
@@ -278,7 +278,7 @@ def context(self):
 
     @property
     def description(self):
-        return "%s; Priority %d" % (self.STATES[self._state], self.priority)
+        return "%s; Priority %d" % (self.STATES.get(self._state, "(Invalid)"), self.priority)
 
     @property
     def name(self):