From: Zhang Rui <rui.zhang@intel.com>
Date: Thu, 17 Jan 2008 07:51:18 +0000 (+0800)
Subject: ACPI: thermal fixup
X-Git-Tag: v2.6.25-rc1~297^2~3^2~2^2~1^3~1
X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=653a00c9662304ef72a3eb4e681c91720960e0b4;p=linux-2.6-omap-h63xx.git

ACPI: thermal fixup

The alias name may be used in _PSL, _ALx and _TZD,
so we bind the cooling device only if the acpi_device node matches.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Thomas Sujith <sujith.thomas@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---

diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index aee371f9daf..73f276bc6e4 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -1015,7 +1015,9 @@ static int acpi_thermal_cooling_device_cb(struct thermal_zone_device *thermal,
 {
 	struct acpi_device *device = cdev->devdata;
 	struct acpi_thermal *tz = thermal->devdata;
-	acpi_handle handle = device->handle;
+	struct acpi_device *dev;
+	acpi_status status;
+	acpi_handle handle;
 	int i;
 	int j;
 	int trip = -1;
@@ -1031,12 +1033,13 @@ static int acpi_thermal_cooling_device_cb(struct thermal_zone_device *thermal,
 		trip++;
 		for (i = 0; i < tz->trips.passive.devices.count;
 		    i++) {
-			if (tz->trips.passive.devices.handles[i] !=
-				handle)
-				continue;
-			result = action(thermal, trip, cdev);
-			if (result)
-				goto failed;
+			handle = tz->trips.passive.devices.handles[i];
+			status = acpi_bus_get_device(handle, &dev);
+			if (ACPI_SUCCESS(status) && (dev == device)) {
+				result = action(thermal, trip, cdev);
+				if (result)
+					goto failed;
+			}
 		}
 	}
 
@@ -1047,21 +1050,24 @@ static int acpi_thermal_cooling_device_cb(struct thermal_zone_device *thermal,
 		for (j = 0;
 		    j < tz->trips.active[i].devices.count;
 		    j++) {
-			if (tz->trips.active[i].devices.
-						handles[j] != handle)
-				continue;
-			result = action(thermal, trip, cdev);
-			if (result)
-				goto failed;
+			handle = tz->trips.active[i].devices.handles[j];
+			status = acpi_bus_get_device(handle, &dev);
+			if (ACPI_SUCCESS(status) && (dev == device)) {
+				result = action(thermal, trip, cdev);
+				if (result)
+					goto failed;
+			}
 		}
 	}
 
 	for (i = 0; i < tz->devices.count; i++) {
-		if (tz->devices.handles[i] != handle)
-			continue;
-		result = action(thermal, -1, cdev);
-		if (result)
-			goto failed;
+		handle = tz->devices.handles[i];
+		status = acpi_bus_get_device(handle, &dev);
+		if (ACPI_SUCCESS(status) && (dev == device)) {
+			result = action(thermal, -1, cdev);
+			if (result)
+				goto failed;
+		}
 	}
 
 failed: