From 0d999027c28f6fe63bddc7460cbcec6cce3d5906 Mon Sep 17 00:00:00 2001
From: Ron Sluiter <rsluiter@users.noreply.github.com>
Date: Fri, 20 Dec 2013 16:41:07 +0000
Subject: [PATCH] Protect against NULL *parms pointer motor record.

---
 motorApp/MicosSrc/devMicos.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/motorApp/MicosSrc/devMicos.cc b/motorApp/MicosSrc/devMicos.cc
index 81e898f3..d57f70ef 100644
--- a/motorApp/MicosSrc/devMicos.cc
+++ b/motorApp/MicosSrc/devMicos.cc
@@ -157,7 +157,8 @@ static RTN_STATUS Micos_build_trans(motor_cmnd command, double *parms, struct mo
 
     rtnval = OK;
     buff[0] = '\0';
-    dval = parms[0];
+    /* Protect against NULL pointer with WRTITE_MSG(GO/STOP_AXIS/GET_INFO, NULL). */
+    dval = (parms == NULL) ? 0.0 : *parms;
     ival = NINT(parms[0]);
 
     rtnval = (RTN_STATUS) motor_start_trans_com(mr, Micos_cards);