releases/2.6.27.15/acpi-attach-the-acpi-device-to-the-acpi-handle-as-early-as-possible.patch

From eab4b645769fa2f8703f5a3cb0cc4ac090d347af Mon Sep 17 00:00:00 2001
From: Zhao Yakui <yakui.zhao@intel.com>
Date: Mon, 11 Aug 2008 14:54:16 +0800
Subject: ACPI: Attach the ACPI device to the ACPI handle as early as possible

From: Zhao Yakui <yakui.zhao@intel.com>

commit eab4b645769fa2f8703f5a3cb0cc4ac090d347af upstream.

Attach the ACPI device to the ACPI handle as early as possible so that OS
can get the corresponding ACPI device by the acpi handle in the course
of getting the power/wakeup/performance flags.

http://bugzilla.kernel.org/show_bug.cgi?id=8049
http://bugzilla.kernel.org/show_bug.cgi?id=11000

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Cc: Thomas Renninger <trenn@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/acpi/scan.c |   12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1262,6 +1262,16 @@ acpi_add_single_object(struct acpi_devic
 	acpi_device_set_id(device, parent, handle, type);
 
 	/*
+	 * The ACPI device is attached to acpi handle before getting
+	 * the power/wakeup/peformance flags. Otherwise OS can't get
+	 * the corresponding ACPI device by the acpi handle in the course
+	 * of getting the power/wakeup/performance flags.
+	 */
+	result = acpi_device_set_context(device, type);
+	if (result)
+		goto end;
+
+	/*
 	 * Power Management
 	 * ----------------
 	 */
@@ -1291,8 +1301,6 @@ acpi_add_single_object(struct acpi_devic
 			goto end;
 	}
 
-	if ((result = acpi_device_set_context(device, type)))
-		goto end;
 
 	result = acpi_device_register(device, parent);