From c289b811b42daf9e7ef5c37a35e951d01c23715a Mon Sep 17 00:00:00 2001
From: jkim <jkim@FreeBSD.org>
Date: Mon, 10 Nov 2014 21:30:04 +0000
Subject: Import ACPICA 20141107.

---
 source/compiler/aslwalks.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'source/compiler/aslwalks.c')

diff --git a/source/compiler/aslwalks.c b/source/compiler/aslwalks.c
index da4e9e3..bbf6407 100644
--- a/source/compiler/aslwalks.c
+++ b/source/compiler/aslwalks.c
@@ -294,6 +294,13 @@ AnOperandTypecheckWalkEnd (
         {
             RequiredBtypes = AnMapArgTypeToBtype (ArgType);
 
+            if (!ArgOp)
+            {
+                AslError (ASL_ERROR, ASL_MSG_COMPILER_INTERNAL, Op,
+                    "Null ArgOp in argument loop");
+                AslAbort ();
+            }
+
             ThisNodeBtype = AnGetBtype (ArgOp);
             if (ThisNodeBtype == ACPI_UINT32_MAX)
             {
-- 
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