diff -Naur acpica-unix2-20150515.orig/source/components/disassembler/dmcstyle.c acpica-unix2-20150515/source/components/disassembler/dmcstyle.c
--- acpica-unix2-20150515.orig/source/components/disassembler/dmcstyle.c	2015-06-01 14:32:51.769218887 -0600
+++ acpica-unix2-20150515/source/components/disassembler/dmcstyle.c	2015-06-01 14:37:38.973898839 -0600
@@ -407,7 +407,7 @@
         {
             AcpiDmPromoteTarget (Op, Target);
 
-            if (!Target->Common.OperatorSymbol)
+            if (Target && !Target->Common.OperatorSymbol)
             {
                 Target->Common.OperatorSymbol = " = ";
             }
@@ -425,7 +425,7 @@
         Target = Child1->Common.Next;
         AcpiDmPromoteTarget (Op, Target);
 
-        if (!Target->Common.OperatorSymbol)
+        if (Target && !Target->Common.OperatorSymbol)
         {
             Target->Common.OperatorSymbol = " = ";
         }
@@ -446,7 +446,10 @@
             /* Valid target, not a placeholder */
 
             AcpiDmPromoteTarget (Op, Target);
-            Target->Common.OperatorSymbol = " = ~";
+	    if (Target)
+	    {
+            	Target->Common.OperatorSymbol = " = ~";
+	    }
         }
         else
         {