From 4bbfb85da27c27e9cc9a7fef4bd75df6361152ff Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Tue, 3 Feb 2009 14:17:29 +0800
Subject: ACPICA: Add error check to debug object dump routine

Add check for invalid handle in acpi_ns_dump_one_object.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/acpica/nsdump.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'drivers/acpi/acpica/nsdump.c')

diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c
index 0da33c8e9ba2..e96d37a596b8 100644
--- a/drivers/acpi/acpica/nsdump.c
+++ b/drivers/acpi/acpica/nsdump.c
@@ -181,6 +181,12 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
 	}
 
 	this_node = acpi_ns_map_handle_to_node(obj_handle);
+	if (!this_node) {
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Invalid object handle %p\n",
+				  obj_handle));
+		return (AE_OK);
+	}
+
 	type = this_node->type;
 
 	/* Check if the owner matches */
-- 
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