Pull acpi_device_handle_cleanup into release branch

10 files changed, 111 insertions, 148 deletions

diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 36ca365bcead..4537ae4838c4 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -65,7 +65,7 @@ static struct acpi_driver acpi_ac_driver = {
 };
 
 struct acpi_ac {
-        acpi_handle handle;
+        struct acpi_device * device;
         unsigned long state;
 };
 
@@ -88,7 +88,7 @@ static int acpi_ac_get_state(struct acpi_ac *ac)
         if (!ac)
                 return -EINVAL;
 
-        status = acpi_evaluate_integer(ac->handle, "_PSR", NULL, &ac->state);
+        status = acpi_evaluate_integer(ac->device->handle, "_PSR", NULL, &ac->state);
         if (ACPI_FAILURE(status)) {
                 ACPI_EXCEPTION((AE_INFO, status, "Error reading AC Adapter state"));
                 ac->state = ACPI_AC_STATUS_UNKNOWN;
@@ -191,9 +191,7 @@ static void acpi_ac_notify(acpi_handle handle, u32 event, void *data)
         if (!ac)
                 return;
 
-        if (acpi_bus_get_device(ac->handle, &device))
-                return;
-
+        device = ac->device;
         switch (event) {
         case ACPI_AC_NOTIFY_STATUS:
                 acpi_ac_get_state(ac);
@@ -223,7 +221,7 @@ static int acpi_ac_add(struct acpi_device *device)
                 return -ENOMEM;
         memset(ac, 0, sizeof(struct acpi_ac));
 
-        ac->handle = device->handle;
+        ac->device = device;
         strcpy(acpi_device_name(device), ACPI_AC_DEVICE_NAME);
         strcpy(acpi_device_class(device), ACPI_AC_CLASS);
         acpi_driver_data(device) = ac;
@@ -236,7 +234,7 @@ static int acpi_ac_add(struct acpi_device *device)
         if (result)
                 goto end;
 
-        status = acpi_install_notify_handler(ac->handle,
+        status = acpi_install_notify_handler(device->handle,
                                              ACPI_DEVICE_NOTIFY, acpi_ac_notify,
                                              ac);
         if (ACPI_FAILURE(status)) {
@@ -268,7 +266,7 @@ static int acpi_ac_remove(struct acpi_device *device, int type)
 
         ac = (struct acpi_ac *)acpi_driver_data(device);
 
-        status = acpi_remove_notify_handler(ac->handle,
+        status = acpi_remove_notify_handler(device->handle,
                                             ACPI_DEVICE_NOTIFY, acpi_ac_notify);
 
         acpi_ac_remove_fs(device);
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index 84a68965c11a..81e970adeab3 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -80,7 +80,7 @@ struct acpi_memory_info {
 };
 
 struct acpi_memory_device {
-        acpi_handle handle;
+        struct acpi_device * device;
         unsigned int state;     /* State of the memory device */
         struct list_head res_list;
 };
@@ -129,7 +129,7 @@ acpi_memory_get_device_resources(struct acpi_memory_device *mem_device)
         struct acpi_memory_info *info, *n;
 
 
-        status = acpi_walk_resources(mem_device->handle, METHOD_NAME__CRS,
+        status = acpi_walk_resources(mem_device->device->handle, METHOD_NAME__CRS,
                                      acpi_memory_get_resource, mem_device);
         if (ACPI_FAILURE(status)) {
                 list_for_each_entry_safe(info, n, &mem_device->res_list, list)
@@ -192,7 +192,7 @@ static int acpi_memory_check_device(struct acpi_memory_device *mem_device)
 
 
         /* Get device present/absent information from the _STA */
-        if (ACPI_FAILURE(acpi_evaluate_integer(mem_device->handle, "_STA",
+        if (ACPI_FAILURE(acpi_evaluate_integer(mem_device->device->handle, "_STA",
                                                NULL, &current_status)))
                 return -ENODEV;
         /*
@@ -222,7 +222,7 @@ static int acpi_memory_enable_device(struct acpi_memory_device *mem_device)
                 return result;
         }
 
-        node = acpi_get_node(mem_device->handle);
+        node = acpi_get_node(mem_device->device->handle);
         /*
          * Tell the VM there is more memory here...
          * Note: Assume that this function returns zero on success
@@ -269,7 +269,7 @@ static int acpi_memory_powerdown_device(struct acpi_memory_device *mem_device)
         arg_list.pointer = &arg;
         arg.type = ACPI_TYPE_INTEGER;
         arg.integer.value = 1;
-        status = acpi_evaluate_object(mem_device->handle,
+        status = acpi_evaluate_object(mem_device->device->handle,
                                       "_EJ0", &arg_list, NULL);
         /* Return on _EJ0 failure */
         if (ACPI_FAILURE(status)) {
@@ -278,7 +278,7 @@ static int acpi_memory_powerdown_device(struct acpi_memory_device *mem_device)
         }
 
         /* Evalute _STA to check if the device is disabled */
-        status = acpi_evaluate_integer(mem_device->handle, "_STA",
+        status = acpi_evaluate_integer(mem_device->device->handle, "_STA",
                                        NULL, &current_status);
         if (ACPI_FAILURE(status))
                 return -ENODEV;
@@ -398,7 +398,7 @@ static int acpi_memory_device_add(struct acpi_device *device)
         memset(mem_device, 0, sizeof(struct acpi_memory_device));
 
         INIT_LIST_HEAD(&mem_device->res_list);
-        mem_device->handle = device->handle;
+        mem_device->device = device;
         sprintf(acpi_device_name(device), "%s", ACPI_MEMORY_DEVICE_NAME);
         sprintf(acpi_device_class(device), "%s", ACPI_MEMORY_DEVICE_CLASS);
         acpi_driver_data(device) = mem_device;
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 7d92f73b265f..2b8aab560b58 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -108,7 +108,7 @@ struct acpi_battery_trips {
 };
 
 struct acpi_battery {
-        acpi_handle handle;
+        struct acpi_device * device;
         struct acpi_battery_flags flags;
         struct acpi_battery_trips trips;
         unsigned long alarm;
@@ -138,7 +138,7 @@ acpi_battery_get_info(struct acpi_battery *battery,
 
         /* Evalute _BIF */
 
-        status = acpi_evaluate_object(battery->handle, "_BIF", NULL, &buffer);
+        status = acpi_evaluate_object(battery->device->handle, "_BIF", NULL, &buffer);
         if (ACPI_FAILURE(status)) {
                 ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BIF"));
                 return -ENODEV;
@@ -198,7 +198,7 @@ acpi_battery_get_status(struct acpi_battery *battery,
 
         /* Evalute _BST */
 
-        status = acpi_evaluate_object(battery->handle, "_BST", NULL, &buffer);
+        status = acpi_evaluate_object(battery->device->handle, "_BST", NULL, &buffer);
         if (ACPI_FAILURE(status)) {
                 ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BST"));
                 return -ENODEV;
@@ -255,7 +255,7 @@ acpi_battery_set_alarm(struct acpi_battery *battery, unsigned long alarm)
 
         arg0.integer.value = alarm;
 
-        status = acpi_evaluate_object(battery->handle, "_BTP", &arg_list, NULL);
+        status = acpi_evaluate_object(battery->device->handle, "_BTP", &arg_list, NULL);
         if (ACPI_FAILURE(status))
                 return -ENODEV;
 
@@ -278,9 +278,7 @@ static int acpi_battery_check(struct acpi_battery *battery)
         if (!battery)
                 return -EINVAL;
 
-        result = acpi_bus_get_device(battery->handle, &device);
-        if (result)
-                return result;
+        device = battery->device;
 
         result = acpi_bus_get_status(device);
         if (result)
@@ -305,7 +303,7 @@ static int acpi_battery_check(struct acpi_battery *battery)
 
                 /* See if alarms are supported, and if so, set default */
 
-                status = acpi_get_handle(battery->handle, "_BTP", &handle);
+                status = acpi_get_handle(battery->device->handle, "_BTP", &handle);
                 if (ACPI_SUCCESS(status)) {
                         battery->flags.alarm = 1;
                         acpi_battery_set_alarm(battery, battery->trips.warning);
@@ -662,8 +660,7 @@ static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
         if (!battery)
                 return;
 
-        if (acpi_bus_get_device(handle, &device))
-                return;
+        device = battery->device;
 
         switch (event) {
         case ACPI_BATTERY_NOTIFY_STATUS:
@@ -695,7 +692,7 @@ static int acpi_battery_add(struct acpi_device *device)
                 return -ENOMEM;
         memset(battery, 0, sizeof(struct acpi_battery));
 
-        battery->handle = device->handle;
+        battery->device = device;
         strcpy(acpi_device_name(device), ACPI_BATTERY_DEVICE_NAME);
         strcpy(acpi_device_class(device), ACPI_BATTERY_CLASS);
         acpi_driver_data(device) = battery;
@@ -708,7 +705,7 @@ static int acpi_battery_add(struct acpi_device *device)
         if (result)
                 goto end;
 
-        status = acpi_install_notify_handler(battery->handle,
+        status = acpi_install_notify_handler(device->handle,
                                              ACPI_DEVICE_NOTIFY,
                                              acpi_battery_notify, battery);
         if (ACPI_FAILURE(status)) {
@@ -740,7 +737,7 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
 
         battery = (struct acpi_battery *)acpi_driver_data(device);
 
-        status = acpi_remove_notify_handler(battery->handle,
+        status = acpi_remove_notify_handler(device->handle,
                                             ACPI_DEVICE_NOTIFY,
                                             acpi_battery_notify);
 
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 02594639c4d9..fd1ba05eab68 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -82,7 +82,6 @@ static struct acpi_driver acpi_button_driver = {
 };
 
 struct acpi_button {
-        acpi_handle handle;
         struct acpi_device *device;     /* Fixed button kludge */
         u8 type;
         unsigned long pushed;
@@ -137,7 +136,7 @@ static int acpi_button_state_seq_show(struct seq_file *seq, void *offset)
         if (!button || !button->device)
                 return 0;
 
-        status = acpi_evaluate_integer(button->handle, "_LID", NULL, &state);
+        status = acpi_evaluate_integer(button->device->handle, "_LID", NULL, &state);
         if (ACPI_FAILURE(status)) {
                 seq_printf(seq, "state:      unsupported\n");
         } else {
@@ -282,7 +281,7 @@ static acpi_status acpi_button_notify_fixed(void *data)
         if (!button)
                 return AE_BAD_PARAMETER;
 
-        acpi_button_notify(button->handle, ACPI_BUTTON_NOTIFY_STATUS, button);
+        acpi_button_notify(button->device->handle, ACPI_BUTTON_NOTIFY_STATUS, button);
 
         return AE_OK;
 }
@@ -303,7 +302,6 @@ static int acpi_button_add(struct acpi_device *device)
         memset(button, 0, sizeof(struct acpi_button));
 
         button->device = device;
-        button->handle = device->handle;
         acpi_driver_data(device) = button;
 
         /*
@@ -362,7 +360,7 @@ static int acpi_button_add(struct acpi_device *device)
                                                      button);
                 break;
         default:
-                status = acpi_install_notify_handler(button->handle,
+                status = acpi_install_notify_handler(device->handle,
                                                      ACPI_DEVICE_NOTIFY,
                                                      acpi_button_notify,
                                                      button);
@@ -420,7 +418,7 @@ static int acpi_button_remove(struct acpi_device *device, int type)
                                                     acpi_button_notify_fixed);
                 break;
         default:
-                status = acpi_remove_notify_handler(button->handle,
+                status = acpi_remove_notify_handler(device->handle,
                                                     ACPI_DEVICE_NOTIFY,
                                                     acpi_button_notify);
                 break;
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index 38acc69b21bc..daed2460924d 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -64,7 +64,7 @@ static struct acpi_driver acpi_fan_driver = {
 };
 
 struct acpi_fan {
-        acpi_handle handle;
+        struct acpi_device * device;
 };
 
 /* --------------------------------------------------------------------------
@@ -80,7 +80,7 @@ static int acpi_fan_read_state(struct seq_file *seq, void *offset)
 
 
         if (fan) {
-                if (acpi_bus_get_power(fan->handle, &state))
+                if (acpi_bus_get_power(fan->device->handle, &state))
                         seq_printf(seq, "status:                  ERROR\n");
                 else
                         seq_printf(seq, "status:                  %s\n",
@@ -112,7 +112,7 @@ acpi_fan_write_state(struct file *file, const char __user * buffer,
 
         state_string[count] = '\0';
 
-        result = acpi_bus_set_power(fan->handle,
+        result = acpi_bus_set_power(fan->device->handle,
                                     simple_strtoul(state_string, NULL, 0));
         if (result)
                 return result;
@@ -191,12 +191,12 @@ static int acpi_fan_add(struct acpi_device *device)
                 return -ENOMEM;
         memset(fan, 0, sizeof(struct acpi_fan));
 
-        fan->handle = device->handle;
+        fan->device = device;
         strcpy(acpi_device_name(device), "Fan");
         strcpy(acpi_device_class(device), ACPI_FAN_CLASS);
         acpi_driver_data(device) = fan;
 
-        result = acpi_bus_get_power(fan->handle, &state);
+        result = acpi_bus_get_power(device->handle, &state);
         if (result) {
                 printk(KERN_ERR PREFIX "Reading power state\n");
                 goto end;
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index 1badce27a83f..8197c0e40769 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -83,7 +83,6 @@ struct acpi_pci_link_irq {
 struct acpi_pci_link {
         struct list_head node;
         struct acpi_device *device;
-        acpi_handle handle;
         struct acpi_pci_link_irq irq;
         int refcnt;
 };
@@ -175,7 +174,7 @@ static int acpi_pci_link_get_possible(struct acpi_pci_link *link)
         if (!link)
                 return -EINVAL;
 
-        status = acpi_walk_resources(link->handle, METHOD_NAME__PRS,
+        status = acpi_walk_resources(link->device->handle, METHOD_NAME__PRS,
                                      acpi_pci_link_check_possible, link);
         if (ACPI_FAILURE(status)) {
                 ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRS"));
@@ -249,8 +248,7 @@ static int acpi_pci_link_get_current(struct acpi_pci_link *link)
         acpi_status status = AE_OK;
         int irq = 0;
 
-
-        if (!link || !link->handle)
+        if (!link)
                 return -EINVAL;
 
         link->irq.active = 0;
@@ -274,7 +272,7 @@ static int acpi_pci_link_get_current(struct acpi_pci_link *link)
          * Query and parse _CRS to get the current IRQ assignment. 
          */
 
-        status = acpi_walk_resources(link->handle, METHOD_NAME__CRS,
+        status = acpi_walk_resources(link->device->handle, METHOD_NAME__CRS,
                                      acpi_pci_link_check_current, &irq);
         if (ACPI_FAILURE(status)) {
                 ACPI_EXCEPTION((AE_INFO, status, "Evaluating _CRS"));
@@ -360,7 +358,7 @@ static int acpi_pci_link_set(struct acpi_pci_link *link, int irq)
         resource->end.type = ACPI_RESOURCE_TYPE_END_TAG;
 
         /* Attempt to set the resource */
-        status = acpi_set_current_resources(link->handle, &buffer);
+        status = acpi_set_current_resources(link->device->handle, &buffer);
 
         /* check for total failure */
         if (ACPI_FAILURE(status)) {
@@ -699,7 +697,7 @@ int acpi_pci_link_free_irq(acpi_handle handle)
                           acpi_device_bid(link->device)));
 
         if (link->refcnt == 0) {
-                acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL);
+                acpi_ut_evaluate_object(link->device->handle, "_DIS", 0, NULL);
         }
         mutex_unlock(&acpi_link_lock);
         return (link->irq.active);
@@ -726,7 +724,6 @@ static int acpi_pci_link_add(struct acpi_device *device)
         memset(link, 0, sizeof(struct acpi_pci_link));
 
         link->device = device;
-        link->handle = device->handle;
         strcpy(acpi_device_name(device), ACPI_PCI_LINK_DEVICE_NAME);
         strcpy(acpi_device_class(device), ACPI_PCI_LINK_CLASS);
         acpi_driver_data(device) = link;
@@ -765,7 +762,7 @@ static int acpi_pci_link_add(struct acpi_device *device)
 
       end:
         /* disable all links -- to be activated on use */
-        acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL);
+        acpi_ut_evaluate_object(device->handle, "_DIS", 0, NULL);
         mutex_unlock(&acpi_link_lock);
 
         if (result)
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 8f10442119f0..0984a1ee24ed 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -58,7 +58,7 @@ static struct acpi_driver acpi_pci_root_driver = {
 
 struct acpi_pci_root {
         struct list_head node;
-        acpi_handle handle;
+        struct acpi_device * device;
         struct acpi_pci_id id;
         struct pci_bus *bus;
 };
@@ -83,7 +83,7 @@ int acpi_pci_register_driver(struct acpi_pci_driver *driver)
         list_for_each(entry, &acpi_pci_roots) {
                 struct acpi_pci_root *root;
                 root = list_entry(entry, struct acpi_pci_root, node);
-                driver->add(root->handle);
+                driver->add(root->device->handle);
                 n++;
         }
 
@@ -110,7 +110,7 @@ void acpi_pci_unregister_driver(struct acpi_pci_driver *driver)
         list_for_each(entry, &acpi_pci_roots) {
                 struct acpi_pci_root *root;
                 root = list_entry(entry, struct acpi_pci_root, node);
-                driver->remove(root->handle);
+                driver->remove(root->device->handle);
         }
 }
 
@@ -170,7 +170,7 @@ static int acpi_pci_root_add(struct acpi_device *device)
         memset(root, 0, sizeof(struct acpi_pci_root));
         INIT_LIST_HEAD(&root->node);
 
-        root->handle = device->handle;
+        root->device = device;
         strcpy(acpi_device_name(device), ACPI_PCI_ROOT_DEVICE_NAME);
         strcpy(acpi_device_class(device), ACPI_PCI_ROOT_CLASS);
         acpi_driver_data(device) = root;
@@ -185,7 +185,7 @@ static int acpi_pci_root_add(struct acpi_device *device)
          * -------
          * Obtained via _SEG, if exists, otherwise assumed to be zero (0).
          */
-        status = acpi_evaluate_integer(root->handle, METHOD_NAME__SEG, NULL,
+        status = acpi_evaluate_integer(device->handle, METHOD_NAME__SEG, NULL,
                                        &value);
         switch (status) {
         case AE_OK:
@@ -207,7 +207,7 @@ static int acpi_pci_root_add(struct acpi_device *device)
          * ---
          * Obtained via _BBN, if exists, otherwise assumed to be zero (0).
          */
-        status = acpi_evaluate_integer(root->handle, METHOD_NAME__BBN, NULL,
+        status = acpi_evaluate_integer(device->handle, METHOD_NAME__BBN, NULL,
                                        &value);
         switch (status) {
         case AE_OK:
@@ -234,7 +234,7 @@ static int acpi_pci_root_add(struct acpi_device *device)
                                     "Wrong _BBN value, reboot"
                                     " and use option 'pci=noacpi'\n");
 
-                        status = try_get_root_bridge_busnr(root->handle, &bus);
+                        status = try_get_root_bridge_busnr(device->handle, &bus);
                         if (ACPI_FAILURE(status))
                                 break;
                         if (bus != root->id.bus) {
@@ -294,9 +294,9 @@ static int acpi_pci_root_add(struct acpi_device *device)
          * -----------------
          * Evaluate and parse _PRT, if exists.
          */
-        status = acpi_get_handle(root->handle, METHOD_NAME__PRT, &handle);
+        status = acpi_get_handle(device->handle, METHOD_NAME__PRT, &handle);
         if (ACPI_SUCCESS(status))
-                result = acpi_pci_irq_add_prt(root->handle, root->id.segment,
+                result = acpi_pci_irq_add_prt(device->handle, root->id.segment,
                                               root->id.bus);
 
       end:
@@ -315,7 +315,7 @@ static int acpi_pci_root_start(struct acpi_device *device)
 
 
         list_for_each_entry(root, &acpi_pci_roots, node) {
-                if (root->handle == device->handle) {
+                if (root->device == device) {
                         pci_bus_add_devices(root->bus);
                         return 0;
                 }
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 224f729f700e..5d3447f4582c 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -70,7 +70,7 @@ static struct acpi_driver acpi_power_driver = {
 };
 
 struct acpi_power_resource {
-        acpi_handle handle;
+        struct acpi_device * device;
         acpi_bus_id name;
         u32 system_level;
         u32 order;
@@ -124,7 +124,7 @@ static int acpi_power_get_state(struct acpi_power_resource *resource)
         if (!resource)
                 return -EINVAL;
 
-        status = acpi_evaluate_integer(resource->handle, "_STA", NULL, &sta);
+        status = acpi_evaluate_integer(resource->device->handle, "_STA", NULL, &sta);
         if (ACPI_FAILURE(status))
                 return -ENODEV;
 
@@ -192,7 +192,7 @@ static int acpi_power_on(acpi_handle handle)
                 return 0;
         }
 
-        status = acpi_evaluate_object(resource->handle, "_ON", NULL, NULL);
+        status = acpi_evaluate_object(resource->device->handle, "_ON", NULL, NULL);
         if (ACPI_FAILURE(status))
                 return -ENODEV;
 
@@ -203,10 +203,8 @@ static int acpi_power_on(acpi_handle handle)
                 return -ENOEXEC;
 
         /* Update the power resource's _device_ power state */
-        result = acpi_bus_get_device(resource->handle, &device);
-        if (result)
-                return result;
-        device->power.state = ACPI_STATE_D0;
+        device = resource->device;
+        resource->device->power.state = ACPI_STATE_D0;
 
         ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] turned on\n",
                           resource->name));
@@ -242,7 +240,7 @@ static int acpi_power_off_device(acpi_handle handle)
                 return 0;
         }
 
-        status = acpi_evaluate_object(resource->handle, "_OFF", NULL, NULL);
+        status = acpi_evaluate_object(resource->device->handle, "_OFF", NULL, NULL);
         if (ACPI_FAILURE(status))
                 return -ENODEV;
 
@@ -253,9 +251,7 @@ static int acpi_power_off_device(acpi_handle handle)
                 return -ENOEXEC;
 
         /* Update the power resource's _device_ power state */
-        result = acpi_bus_get_device(resource->handle, &device);
-        if (result)
-                return result;
+        device = resource->device;
         device->power.state = ACPI_STATE_D3;
 
         ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Resource [%s] turned off\n",
@@ -544,14 +540,14 @@ static int acpi_power_add(struct acpi_device *device)
                 return -ENOMEM;
         memset(resource, 0, sizeof(struct acpi_power_resource));
 
-        resource->handle = device->handle;
+        resource->device = device;
         strcpy(resource->name, device->pnp.bus_id);
         strcpy(acpi_device_name(device), ACPI_POWER_DEVICE_NAME);
         strcpy(acpi_device_class(device), ACPI_POWER_CLASS);
         acpi_driver_data(device) = resource;
 
         /* Evalute the object to get the system level and resource order. */
-        status = acpi_evaluate_object(resource->handle, NULL, NULL, &buffer);
+        status = acpi_evaluate_object(device->handle, NULL, NULL, &buffer);
         if (ACPI_FAILURE(status)) {
                 result = -ENODEV;
                 goto end;
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);
 
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 1f3ffb353299..56666a982476 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -117,7 +117,7 @@ struct acpi_video_enumerated_device {
 };
 
 struct acpi_video_bus {
-        acpi_handle handle;
+        struct acpi_device *device;
         u8 dos_setting;
         struct acpi_video_enumerated_device *attached_array;
         u8 attached_count;
@@ -155,7 +155,6 @@ struct acpi_video_device_brightness {
 };
 
 struct acpi_video_device {
-        acpi_handle handle;
         unsigned long device_id;
         struct acpi_video_device_flags flags;
         struct acpi_video_device_cap cap;
@@ -272,7 +271,8 @@ static int
 acpi_video_device_query(struct acpi_video_device *device, unsigned long *state)
 {
         int status;
-        status = acpi_evaluate_integer(device->handle, "_DGS", NULL, state);
+
+        status = acpi_evaluate_integer(device->dev->handle, "_DGS", NULL, state);
 
         return status;
 }
@@ -283,8 +283,7 @@ acpi_video_device_get_state(struct acpi_video_device *device,
 {
         int status;
 
-
-        status = acpi_evaluate_integer(device->handle, "_DCS", NULL, state);
+        status = acpi_evaluate_integer(device->dev->handle, "_DCS", NULL, state);
 
         return status;
 }
@@ -299,7 +298,7 @@ acpi_video_device_set_state(struct acpi_video_device *device, int state)
 
 
         arg0.integer.value = state;
-        status = acpi_evaluate_integer(device->handle, "_DSS", &args, &ret);
+        status = acpi_evaluate_integer(device->dev->handle, "_DSS", &args, &ret);
 
         return status;
 }
@@ -315,7 +314,7 @@ acpi_video_device_lcd_query_levels(struct acpi_video_device *device,
 
         *levels = NULL;
 
-        status = acpi_evaluate_object(device->handle, "_BCL", NULL, &buffer);
+        status = acpi_evaluate_object(device->dev->handle, "_BCL", NULL, &buffer);
         if (!ACPI_SUCCESS(status))
                 return status;
         obj = (union acpi_object *)buffer.pointer;
@@ -344,7 +343,7 @@ acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level)
 
 
         arg0.integer.value = level;
-        status = acpi_evaluate_object(device->handle, "_BCM", &args, NULL);
+        status = acpi_evaluate_object(device->dev->handle, "_BCM", &args, NULL);
 
         printk(KERN_DEBUG "set_level status: %x\n", status);
         return status;
@@ -356,7 +355,7 @@ acpi_video_device_lcd_get_level_current(struct acpi_video_device *device,
 {
         int status;
 
-        status = acpi_evaluate_integer(device->handle, "_BQC", NULL, level);
+        status = acpi_evaluate_integer(device->dev->handle, "_BQC", NULL, level);
 
         return status;
 }
@@ -383,7 +382,7 @@ acpi_video_device_EDID(struct acpi_video_device *device,
         else
                 return -EINVAL;
 
-        status = acpi_evaluate_object(device->handle, "_DDC", &args, &buffer);
+        status = acpi_evaluate_object(device->dev->handle, "_DDC", &args, &buffer);
         if (ACPI_FAILURE(status))
                 return -ENODEV;
 
@@ -413,7 +412,7 @@ acpi_video_bus_set_POST(struct acpi_video_bus *video, unsigned long option)
 
         arg0.integer.value = option;
 
-        status = acpi_evaluate_integer(video->handle, "_SPD", &args, &tmp);
+        status = acpi_evaluate_integer(video->device->handle, "_SPD", &args, &tmp);
         if (ACPI_SUCCESS(status))
                 status = tmp ? (-EINVAL) : (AE_OK);
 
@@ -425,8 +424,7 @@ acpi_video_bus_get_POST(struct acpi_video_bus *video, unsigned long *id)
 {
         int status;
 
-
-        status = acpi_evaluate_integer(video->handle, "_GPD", NULL, id);
+        status = acpi_evaluate_integer(video->device->handle, "_GPD", NULL, id);
 
         return status;
 }
@@ -437,7 +435,7 @@ acpi_video_bus_POST_options(struct acpi_video_bus *video,
 {
         int status;
 
-        status = acpi_evaluate_integer(video->handle, "_VPO", NULL, options);
+        status = acpi_evaluate_integer(video->device->handle, "_VPO", NULL, options);
         *options &= 3;
 
         return status;
@@ -478,7 +476,7 @@ acpi_video_bus_DOS(struct acpi_video_bus *video, int bios_flag, int lcd_flag)
         }
         arg0.integer.value = (lcd_flag << 2) | bios_flag;
         video->dos_setting = arg0.integer.value;
-        acpi_evaluate_object(video->handle, "_DOS", &args, NULL);
+        acpi_evaluate_object(video->device->handle, "_DOS", &args, NULL);
 
       Failed:
         return status;
@@ -506,25 +504,25 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
 
         memset(&device->cap, 0, 4);
 
-        if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_ADR", &h_dummy1))) {
+        if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_ADR", &h_dummy1))) {
                 device->cap._ADR = 1;
         }
-        if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_BCL", &h_dummy1))) {
+        if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_BCL", &h_dummy1))) {
                 device->cap._BCL = 1;
         }
-        if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_BCM", &h_dummy1))) {
+        if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_BCM", &h_dummy1))) {
                 device->cap._BCM = 1;
         }
-        if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_DDC", &h_dummy1))) {
+        if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DDC", &h_dummy1))) {
                 device->cap._DDC = 1;
         }
-        if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_DCS", &h_dummy1))) {
+        if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DCS", &h_dummy1))) {
                 device->cap._DCS = 1;
         }
-        if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_DGS", &h_dummy1))) {
+        if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DGS", &h_dummy1))) {
                 device->cap._DGS = 1;
         }
-        if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_DSS", &h_dummy1))) {
+        if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DSS", &h_dummy1))) {
                 device->cap._DSS = 1;
         }
 
@@ -588,22 +586,22 @@ static void acpi_video_bus_find_cap(struct acpi_video_bus *video)
         acpi_handle h_dummy1;
 
         memset(&video->cap, 0, 4);
-        if (ACPI_SUCCESS(acpi_get_handle(video->handle, "_DOS", &h_dummy1))) {
+        if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_DOS", &h_dummy1))) {
                 video->cap._DOS = 1;
         }
-        if (ACPI_SUCCESS(acpi_get_handle(video->handle, "_DOD", &h_dummy1))) {
+        if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_DOD", &h_dummy1))) {
                 video->cap._DOD = 1;
         }
-        if (ACPI_SUCCESS(acpi_get_handle(video->handle, "_ROM", &h_dummy1))) {
+        if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_ROM", &h_dummy1))) {
                 video->cap._ROM = 1;
         }
-        if (ACPI_SUCCESS(acpi_get_handle(video->handle, "_GPD", &h_dummy1))) {
+        if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_GPD", &h_dummy1))) {
                 video->cap._GPD = 1;
         }
-        if (ACPI_SUCCESS(acpi_get_handle(video->handle, "_SPD", &h_dummy1))) {
+        if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_SPD", &h_dummy1))) {
                 video->cap._SPD = 1;
         }
-        if (ACPI_SUCCESS(acpi_get_handle(video->handle, "_VPO", &h_dummy1))) {
+        if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_VPO", &h_dummy1))) {
                 video->cap._VPO = 1;
         }
 }
@@ -1271,7 +1269,6 @@ acpi_video_bus_get_one_device(struct acpi_device *device,
 
                 memset(data, 0, sizeof(struct acpi_video_device));
 
-                data->handle = device->handle;
                 strcpy(acpi_device_name(device), ACPI_VIDEO_DEVICE_NAME);
                 strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS);
                 acpi_driver_data(device) = data;
@@ -1298,7 +1295,7 @@ acpi_video_bus_get_one_device(struct acpi_device *device,
                 acpi_video_device_bind(video, data);
                 acpi_video_device_find_cap(data);
 
-                status = acpi_install_notify_handler(data->handle,
+                status = acpi_install_notify_handler(device->handle,
                                                      ACPI_DEVICE_NOTIFY,
                                                      acpi_video_device_notify,
                                                      data);
@@ -1400,8 +1397,7 @@ static int acpi_video_device_enumerate(struct acpi_video_bus *video)
         union acpi_object *dod = NULL;
         union acpi_object *obj;
 
-
-        status = acpi_evaluate_object(video->handle, "_DOD", NULL, &buffer);
+        status = acpi_evaluate_object(video->device->handle, "_DOD", NULL, &buffer);
         if (!ACPI_SUCCESS(status)) {
                 ACPI_EXCEPTION((AE_INFO, status, "Evaluating _DOD"));
                 return status;
@@ -1569,7 +1565,7 @@ static int acpi_video_bus_put_one_device(struct acpi_video_device *device)
         up(&video->sem);
         acpi_video_device_remove_fs(device->dev);
 
-        status = acpi_remove_notify_handler(device->handle,
+        status = acpi_remove_notify_handler(device->dev->handle,
                                             ACPI_DEVICE_NOTIFY,
                                             acpi_video_device_notify);
 
@@ -1624,8 +1620,7 @@ static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data)
         if (!video)
                 return;
 
-        if (acpi_bus_get_device(handle, &device))
-                return;
+        device = video->device;
 
         switch (event) {
         case ACPI_VIDEO_NOTIFY_SWITCH:  /* User request that a switch occur,
@@ -1668,8 +1663,7 @@ static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data)
         if (!video_device)
                 return;
 
-        if (acpi_bus_get_device(handle, &device))
-                return;
+        device = video_device->dev;
 
         switch (event) {
         case ACPI_VIDEO_NOTIFY_SWITCH:  /* change in status (cycle output device) */
@@ -1707,7 +1701,7 @@ static int acpi_video_bus_add(struct acpi_device *device)
                 return -ENOMEM;
         memset(video, 0, sizeof(struct acpi_video_bus));
 
-        video->handle = device->handle;
+        video->device = device;
         strcpy(acpi_device_name(device), ACPI_VIDEO_BUS_NAME);
         strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS);
         acpi_driver_data(device) = video;
@@ -1727,7 +1721,7 @@ static int acpi_video_bus_add(struct acpi_device *device)
         acpi_video_bus_get_devices(video, device);
         acpi_video_bus_start_devices(video);
 
-        status = acpi_install_notify_handler(video->handle,
+        status = acpi_install_notify_handler(device->handle,
                                              ACPI_DEVICE_NOTIFY,
                                              acpi_video_bus_notify, video);
         if (ACPI_FAILURE(status)) {
@@ -1767,7 +1761,7 @@ static int acpi_video_bus_remove(struct acpi_device *device, int type)
 
         acpi_video_bus_stop_devices(video);
 
-        status = acpi_remove_notify_handler(video->handle,
+        status = acpi_remove_notify_handler(video->device->handle,
                                             ACPI_DEVICE_NOTIFY,
                                             acpi_video_bus_notify);