1 files changed, 20 insertions, 37 deletions

diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index c855f4446b5f..503c0b99db12 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -162,7 +162,7 @@ struct acpi_thermal_flags {
 };
 
 struct acpi_thermal {
-        acpi_handle handle;
+        struct acpi_device * device;
         acpi_bus_id name;
         unsigned long temperature;
         unsigned long last_temperature;
@@ -229,7 +229,7 @@ static int acpi_thermal_get_temperature(struct acpi_thermal *tz)
         tz->last_temperature = tz->temperature;
 
         status =
-            acpi_evaluate_integer(tz->handle, "_TMP", NULL, &tz->temperature);
+            acpi_evaluate_integer(tz->device->handle, "_TMP", NULL, &tz->temperature);
         if (ACPI_FAILURE(status))
                 return -ENODEV;
 
@@ -248,7 +248,7 @@ static int acpi_thermal_get_polling_frequency(struct acpi_thermal *tz)
                 return -EINVAL;
 
         status =
-            acpi_evaluate_integer(tz->handle, "_TZP", NULL,
+            acpi_evaluate_integer(tz->device->handle, "_TZP", NULL,
                                   &tz->polling_frequency);
         if (ACPI_FAILURE(status))
                 return -ENODEV;
@@ -285,7 +285,7 @@ static int acpi_thermal_set_cooling_mode(struct acpi_thermal *tz, int mode)
         if (!tz)
                 return -EINVAL;
 
-        status = acpi_get_handle(tz->handle, "_SCP", &handle);
+        status = acpi_get_handle(tz->device->handle, "_SCP", &handle);
         if (ACPI_FAILURE(status)) {
                 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "_SCP not present\n"));
                 return -ENODEV;
@@ -316,7 +316,7 @@ static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
 
         /* Critical Shutdown (required) */
 
-        status = acpi_evaluate_integer(tz->handle, "_CRT", NULL,
+        status = acpi_evaluate_integer(tz->device->handle, "_CRT", NULL,
                                        &tz->trips.critical.temperature);
         if (ACPI_FAILURE(status)) {
                 tz->trips.critical.flags.valid = 0;
@@ -332,7 +332,7 @@ static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
         /* Critical Sleep (optional) */
 
         status =
-            acpi_evaluate_integer(tz->handle, "_HOT", NULL,
+            acpi_evaluate_integer(tz->device->handle, "_HOT", NULL,
                                   &tz->trips.hot.temperature);
         if (ACPI_FAILURE(status)) {
                 tz->trips.hot.flags.valid = 0;
@@ -346,7 +346,7 @@ static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
         /* Passive: Processors (optional) */
 
         status =
-            acpi_evaluate_integer(tz->handle, "_PSV", NULL,
+            acpi_evaluate_integer(tz->device->handle, "_PSV", NULL,
                                   &tz->trips.passive.temperature);
         if (ACPI_FAILURE(status)) {
                 tz->trips.passive.flags.valid = 0;
@@ -355,25 +355,25 @@ static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
                 tz->trips.passive.flags.valid = 1;
 
                 status =
-                    acpi_evaluate_integer(tz->handle, "_TC1", NULL,
+                    acpi_evaluate_integer(tz->device->handle, "_TC1", NULL,
                                           &tz->trips.passive.tc1);
                 if (ACPI_FAILURE(status))
                         tz->trips.passive.flags.valid = 0;
 
                 status =
-                    acpi_evaluate_integer(tz->handle, "_TC2", NULL,
+                    acpi_evaluate_integer(tz->device->handle, "_TC2", NULL,
                                           &tz->trips.passive.tc2);
                 if (ACPI_FAILURE(status))
                         tz->trips.passive.flags.valid = 0;
 
                 status =
-                    acpi_evaluate_integer(tz->handle, "_TSP", NULL,
+                    acpi_evaluate_integer(tz->device->handle, "_TSP", NULL,
                                           &tz->trips.passive.tsp);
                 if (ACPI_FAILURE(status))
                         tz->trips.passive.flags.valid = 0;
 
                 status =
-                    acpi_evaluate_reference(tz->handle, "_PSL", NULL,
+                    acpi_evaluate_reference(tz->device->handle, "_PSL", NULL,
                                             &tz->trips.passive.devices);
                 if (ACPI_FAILURE(status))
                         tz->trips.passive.flags.valid = 0;
@@ -393,14 +393,14 @@ static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
                 char name[5] = { '_', 'A', 'C', ('0' + i), '\0' };
 
                 status =
-                    acpi_evaluate_integer(tz->handle, name, NULL,
+                    acpi_evaluate_integer(tz->device->handle, name, NULL,
                                           &tz->trips.active[i].temperature);
                 if (ACPI_FAILURE(status))
                         break;
 
                 name[2] = 'L';
                 status =
-                    acpi_evaluate_reference(tz->handle, name, NULL,
+                    acpi_evaluate_reference(tz->device->handle, name, NULL,
                                             &tz->trips.active[i].devices);
                 if (ACPI_SUCCESS(status)) {
                         tz->trips.active[i].flags.valid = 1;
@@ -424,7 +424,7 @@ static int acpi_thermal_get_devices(struct acpi_thermal *tz)
                 return -EINVAL;
 
         status =
-            acpi_evaluate_reference(tz->handle, "_TZD", NULL, &tz->devices);
+            acpi_evaluate_reference(tz->device->handle, "_TZD", NULL, &tz->devices);
         if (ACPI_FAILURE(status))
                 return -ENODEV;
 
@@ -453,10 +453,6 @@ static int acpi_thermal_call_usermode(char *path)
 
 static int acpi_thermal_critical(struct acpi_thermal *tz)
 {
-        int result = 0;
-        struct acpi_device *device = NULL;
-
-
         if (!tz || !tz->trips.critical.flags.valid)
                 return -EINVAL;
 
@@ -466,14 +462,10 @@ static int acpi_thermal_critical(struct acpi_thermal *tz)
         } else if (tz->trips.critical.flags.enabled)
                 tz->trips.critical.flags.enabled = 0;
 
-        result = acpi_bus_get_device(tz->handle, &device);
-        if (result)
-                return result;
-
         printk(KERN_EMERG
                "Critical temperature reached (%ld C), shutting down.\n",
                KELVIN_TO_CELSIUS(tz->temperature));
-        acpi_bus_generate_event(device, ACPI_THERMAL_NOTIFY_CRITICAL,
+        acpi_bus_generate_event(tz->device, ACPI_THERMAL_NOTIFY_CRITICAL,
                                 tz->trips.critical.flags.enabled);
 
         acpi_thermal_call_usermode(ACPI_THERMAL_PATH_POWEROFF);
@@ -483,10 +475,6 @@ static int acpi_thermal_critical(struct acpi_thermal *tz)
 
 static int acpi_thermal_hot(struct acpi_thermal *tz)
 {
-        int result = 0;
-        struct acpi_device *device = NULL;
-
-
         if (!tz || !tz->trips.hot.flags.valid)
                 return -EINVAL;
 
@@ -496,11 +484,7 @@ static int acpi_thermal_hot(struct acpi_thermal *tz)
         } else if (tz->trips.hot.flags.enabled)
                 tz->trips.hot.flags.enabled = 0;
 
-        result = acpi_bus_get_device(tz->handle, &device);
-        if (result)
-                return result;
-
-        acpi_bus_generate_event(device, ACPI_THERMAL_NOTIFY_HOT,
+        acpi_bus_generate_event(tz->device, ACPI_THERMAL_NOTIFY_HOT,
                                 tz->trips.hot.flags.enabled);
 
         /* TBD: Call user-mode "sleep(S4)" function */
@@ -1193,8 +1177,7 @@ static void acpi_thermal_notify(acpi_handle handle, u32 event, void *data)
         if (!tz)
                 return;
 
-        if (acpi_bus_get_device(tz->handle, &device))
-                return;
+        device = tz->device;
 
         switch (event) {
         case ACPI_THERMAL_NOTIFY_TEMPERATURE:
@@ -1293,7 +1276,7 @@ static int acpi_thermal_add(struct acpi_device *device)
                 return -ENOMEM;
         memset(tz, 0, sizeof(struct acpi_thermal));
 
-        tz->handle = device->handle;
+        tz->device = device;
         strcpy(tz->name, device->pnp.bus_id);
         strcpy(acpi_device_name(device), ACPI_THERMAL_DEVICE_NAME);
         strcpy(acpi_device_class(device), ACPI_THERMAL_CLASS);
@@ -1311,7 +1294,7 @@ static int acpi_thermal_add(struct acpi_device *device)
 
         acpi_thermal_check(tz);
 
-        status = acpi_install_notify_handler(tz->handle,
+        status = acpi_install_notify_handler(device->handle,
                                              ACPI_DEVICE_NOTIFY,
                                              acpi_thermal_notify, tz);
         if (ACPI_FAILURE(status)) {
@@ -1352,7 +1335,7 @@ static int acpi_thermal_remove(struct acpi_device *device, int type)
         /* deferred task may reinsert timer */
         del_timer_sync(&(tz->timer));
 
-        status = acpi_remove_notify_handler(tz->handle,
+        status = acpi_remove_notify_handler(device->handle,
                                             ACPI_DEVICE_NOTIFY,
                                             acpi_thermal_notify);