From b2a92415360aacb32d9b6107bdcf100d16d09167 Mon Sep 17 00:00:00 2001
From: jkim <jkim@FreeBSD.org>
Date: Fri, 23 Aug 2013 18:01:58 +0000
Subject: Import ACPICA 20130823.

---
 source/components/namespace/nsxfeval.c | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'source/components/namespace/nsxfeval.c')

diff --git a/source/components/namespace/nsxfeval.c b/source/components/namespace/nsxfeval.c
index e5c1e17..007ade3 100644
--- a/source/components/namespace/nsxfeval.c
+++ b/source/components/namespace/nsxfeval.c
@@ -654,10 +654,19 @@ AcpiWalkNamespace (
         goto UnlockAndExit;
     }
 
+    /* Now we can validate the starting node */
+
+    if (!AcpiNsValidateHandle (StartObject))
+    {
+        Status = AE_BAD_PARAMETER;
+        goto UnlockAndExit2;
+    }
+
     Status = AcpiNsWalkNamespace (Type, StartObject, MaxDepth,
                 ACPI_NS_WALK_UNLOCK, DescendingCallback,
                 AscendingCallback, Context, ReturnValue);
 
+UnlockAndExit2:
     (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
 
 UnlockAndExit:
-- 
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