Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (44 commits)
  ACPI: remove function tracing macros from drivers/acpi/*.c
  ACPI: add support for Smart Battery
  ACPI: handle battery notify event on broken BIOS
  ACPI: handle AC notify event on broken BIOS
  ACPI: asus_acpi: add S1N WLED control
  ACPI: asus_acpi: correct M6N/M6R display nodes
  ACPI: asus_acpi: add S1N WLED control
  ACPI: asus_acpi: rework model detection
  ACPI: asus_acpi: support L5D
  ACPI: asus_acpi: handle internal Bluetooth / support W5A
  ACPI: asus_acpi: support A4G
  ACPI: asus_acpi: support W3400N
  ACPI: asus_acpi: LED display support
  ACPI: asus_acpi: support A3G
  ACPI: asus_acpi: misc cleanups
  ACPI: video: Remove unneeded acpi_handle from driver.
  ACPI: thermal: Remove unneeded acpi_handle from driver.
  ACPI: power: Remove unneeded acpi_handle from driver.
  ACPI: pci_root: Remove unneeded acpi_handle from driver.
  ACPI: pci_link: Remove unneeded acpi_handle from driver.
  ...

arch/ia64/kernel/acpi-ext.c

@@ -50,7 +50,7 @@ static acpi_status hp_ccsr_locate(acpi_handle obj, u64 *base, u64 *length)
 	memcpy(length, vendor->byte_data + 8, sizeof(*length));
 
   exit:
-	acpi_os_free(buffer.pointer);
+	kfree(buffer.pointer);
 	return status;
 }
 

arch/ia64/kernel/acpi.c

@@ -856,7 +856,7 @@ int acpi_map_lsapic(acpi_handle handle, int *pcpu)
 	obj = buffer.pointer;
 	if (obj->type != ACPI_TYPE_BUFFER ||
 	    obj->buffer.length < sizeof(*lsapic)) {
-		acpi_os_free(buffer.pointer);
+		kfree(buffer.pointer);
 		return -EINVAL;
 	}
 
@@ -864,13 +864,13 @@ int acpi_map_lsapic(acpi_handle handle, int *pcpu)
 
 	if ((lsapic->header.type != ACPI_MADT_LSAPIC) ||
 	    (!lsapic->flags.enabled)) {
-		acpi_os_free(buffer.pointer);
+		kfree(buffer.pointer);
 		return -EINVAL;
 	}
 
 	physid = ((lsapic->id << 8) | (lsapic->eid));
 
-	acpi_os_free(buffer.pointer);
+	kfree(buffer.pointer);
 	buffer.length = ACPI_ALLOCATE_BUFFER;
 	buffer.pointer = NULL;
 
@@ -934,20 +934,20 @@ acpi_map_iosapic(acpi_handle handle, u32 depth, void *context, void **ret)
 	obj = buffer.pointer;
 	if (obj->type != ACPI_TYPE_BUFFER ||
 	    obj->buffer.length < sizeof(*iosapic)) {
-		acpi_os_free(buffer.pointer);
+		kfree(buffer.pointer);
 		return AE_OK;
 	}
 
 	iosapic = (struct acpi_table_iosapic *)obj->buffer.pointer;
 
 	if (iosapic->header.type != ACPI_MADT_IOSAPIC) {
-		acpi_os_free(buffer.pointer);
+		kfree(buffer.pointer);
 		return AE_OK;
 	}
 
 	gsi_base = iosapic->global_irq_base;
 
-	acpi_os_free(buffer.pointer);
+	kfree(buffer.pointer);
 
 	/*
 	 * OK, it's an IOSAPIC MADT entry, look for a _PXM value to tell

drivers/acpi/Kconfig

@@ -352,6 +352,18 @@ config ACPI_HOTPLUG_MEMORY
 	  If one selects "m," this driver can be loaded using the following
 	  command: 
 		$>modprobe acpi_memhotplug 
+
+config ACPI_SBS
+	tristate "Smart Battery System (EXPERIMENTAL)"
+	depends on X86 && I2C
+	depends on EXPERIMENTAL
+	default y
+	help
+	  This driver adds support for the Smart Battery System.
+	  Depends on I2C (Device Drivers ---> I2C support)
+	  A "Smart Battery" is quite old and quite rare compared
+	  to today's ACPI "Control Method" battery.
+
 endif	# ACPI
 
 endmenu

drivers/acpi/Makefile

@@ -58,3 +58,5 @@ obj-$(CONFIG_ACPI_IBM)		+= ibm_acpi.o
 obj-$(CONFIG_ACPI_TOSHIBA)	+= toshiba_acpi.o
 obj-y				+= scan.o motherboard.o
 obj-$(CONFIG_ACPI_HOTPLUG_MEMORY)	+= acpi_memhotplug.o
+obj-y				+= cm_sbs.o
+obj-$(CONFIG_ACPI_SBS)		+= i2c_ec.o sbs.o

drivers/acpi/ac.c

@@ -50,6 +50,9 @@ ACPI_MODULE_NAME("acpi_ac")
 MODULE_DESCRIPTION(ACPI_AC_DRIVER_NAME);
 MODULE_LICENSE("GPL");
 
+extern struct proc_dir_entry *acpi_lock_ac_dir(void);
+extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir);
+
 static int acpi_ac_add(struct acpi_device *device);
 static int acpi_ac_remove(struct acpi_device *device, int type);
 static int acpi_ac_open_fs(struct inode *inode, struct file *file);
@@ -65,7 +68,7 @@ static struct acpi_driver acpi_ac_driver = {
 };
 
 struct acpi_ac {
-	acpi_handle handle;
+	struct acpi_device * device;
 	unsigned long state;
 };
 
@@ -88,7 +91,7 @@ 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;
@@ -191,11 +194,11 @@ 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:
+	case ACPI_NOTIFY_BUS_CHECK:
+	case ACPI_NOTIFY_DEVICE_CHECK:
 		acpi_ac_get_state(ac);
 		acpi_bus_generate_event(device, event, (u32) ac->state);
 		break;
@@ -223,7 +226,7 @@ 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;
@@ -236,8 +239,8 @@ static int acpi_ac_add(struct acpi_device *device)
 	if (result)
 		goto end;
 
-	status = acpi_install_notify_handler(ac->handle,
-					     ACPI_DEVICE_NOTIFY, acpi_ac_notify,
+	status = acpi_install_notify_handler(device->handle,
+					     ACPI_ALL_NOTIFY, acpi_ac_notify,
 					     ac);
 	if (ACPI_FAILURE(status)) {
 		result = -ENODEV;
@@ -268,8 +271,8 @@ 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,
-					    ACPI_DEVICE_NOTIFY, acpi_ac_notify);
+	status = acpi_remove_notify_handler(device->handle,
+					    ACPI_ALL_NOTIFY, acpi_ac_notify);
 
 	acpi_ac_remove_fs(device);
 
@@ -280,17 +283,16 @@ static int acpi_ac_remove(struct acpi_device *device, int type)
 
 static int __init acpi_ac_init(void)
 {
-	int result = 0;
+	int result;
 
 
-	acpi_ac_dir = proc_mkdir(ACPI_AC_CLASS, acpi_root_dir);
+	acpi_ac_dir = acpi_lock_ac_dir();
 	if (!acpi_ac_dir)
 		return -ENODEV;
-	acpi_ac_dir->owner = THIS_MODULE;
 
 	result = acpi_bus_register_driver(&acpi_ac_driver);
 	if (result < 0) {
-		remove_proc_entry(ACPI_AC_CLASS, acpi_root_dir);
+		acpi_unlock_ac_dir(acpi_ac_dir);
 		return -ENODEV;
 	}
 
@@ -302,7 +304,7 @@ static void __exit acpi_ac_exit(void)
 
 	acpi_bus_unregister_driver(&acpi_ac_driver);
 
-	remove_proc_entry(ACPI_AC_CLASS, acpi_root_dir);
+	acpi_unlock_ac_dir(acpi_ac_dir);
 
 	return;
 }

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;
@@ -466,7 +466,7 @@ static acpi_status is_memory_device(acpi_handle handle)
 
 	info = buffer.pointer;
 	if (!(info->valid & ACPI_VALID_HID)) {
-		acpi_os_free(buffer.pointer);
+		kfree(buffer.pointer);
 		return AE_ERROR;
 	}
 
@@ -475,7 +475,7 @@ static acpi_status is_memory_device(acpi_handle handle)
 	    (strcmp(hardware_id, ACPI_MEMORY_DEVICE_HID)))
 		status = AE_ERROR;
 
-	acpi_os_free(buffer.pointer);
+	kfree(buffer.pointer);
 	return status;
 }
 

drivers/acpi/battery.c

@@ -59,6 +59,9 @@ ACPI_MODULE_NAME("acpi_battery")
 MODULE_DESCRIPTION(ACPI_BATTERY_DRIVER_NAME);
 MODULE_LICENSE("GPL");
 
+extern struct proc_dir_entry *acpi_lock_battery_dir(void);
+extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
+
 static int acpi_battery_add(struct acpi_device *device);
 static int acpi_battery_remove(struct acpi_device *device, int type);
 
@@ -108,7 +111,7 @@ 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 +141,7 @@ 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;
@@ -171,7 +174,7 @@ acpi_battery_get_info(struct acpi_battery *battery,
 	}
 
       end:
-	acpi_os_free(buffer.pointer);
+	kfree(buffer.pointer);
 
 	if (!result)
 		(*bif) = (struct acpi_battery_info *)data.pointer;
@@ -198,7 +201,7 @@ 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;
@@ -231,7 +234,7 @@ acpi_battery_get_status(struct acpi_battery *battery,
 	}
 
       end:
-	acpi_os_free(buffer.pointer);
+	kfree(buffer.pointer);
 
 	if (!result)
 		(*bst) = (struct acpi_battery_status *)data.pointer;
@@ -255,7 +258,7 @@ 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 +281,7 @@ 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 +306,7 @@ 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);
@@ -662,12 +663,13 @@ 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:
 	case ACPI_BATTERY_NOTIFY_INFO:
+	case ACPI_NOTIFY_BUS_CHECK:
+	case ACPI_NOTIFY_DEVICE_CHECK:
 		acpi_battery_check(battery);
 		acpi_bus_generate_event(device, event, battery->flags.present);
 		break;
@@ -695,7 +697,7 @@ 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;
@@ -708,8 +710,8 @@ static int acpi_battery_add(struct acpi_device *device)
 	if (result)
 		goto end;
 
-	status = acpi_install_notify_handler(battery->handle,
-					     ACPI_DEVICE_NOTIFY,
+	status = acpi_install_notify_handler(device->handle,
+					     ACPI_ALL_NOTIFY,
 					     acpi_battery_notify, battery);
 	if (ACPI_FAILURE(status)) {
 		result = -ENODEV;
@@ -740,8 +742,8 @@ 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,
-					    ACPI_DEVICE_NOTIFY,
+	status = acpi_remove_notify_handler(device->handle,
+					    ACPI_ALL_NOTIFY,
 					    acpi_battery_notify);
 
 	acpi_battery_remove_fs(device);
@@ -753,17 +755,15 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
 
 static int __init acpi_battery_init(void)
 {
-	int result = 0;
-
+	int result;
 
-	acpi_battery_dir = proc_mkdir(ACPI_BATTERY_CLASS, acpi_root_dir);
+	acpi_battery_dir = acpi_lock_battery_dir();
 	if (!acpi_battery_dir)
 		return -ENODEV;
-	acpi_battery_dir->owner = THIS_MODULE;
 
 	result = acpi_bus_register_driver(&acpi_battery_driver);
 	if (result < 0) {
-		remove_proc_entry(ACPI_BATTERY_CLASS, acpi_root_dir);
+		acpi_unlock_battery_dir(acpi_battery_dir);
 		return -ENODEV;
 	}
 
@@ -775,7 +775,7 @@ static void __exit acpi_battery_exit(void)
 
 	acpi_bus_unregister_driver(&acpi_battery_driver);
 
-	remove_proc_entry(ACPI_BATTERY_CLASS, acpi_root_dir);
+	acpi_unlock_battery_dir(acpi_battery_dir);
 
 	return;
 }

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;

drivers/acpi/cm_sbs.c

+/*
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or (at
+ *  your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but
+ *  WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/acpi.h>
+#include <linux/types.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
+#include <acpi/acmacros.h>
+#include <acpi/actypes.h>
+#include <acpi/acutils.h>
+
+ACPI_MODULE_NAME("cm_sbs")
+#define ACPI_AC_CLASS		"ac_adapter"
+#define ACPI_BATTERY_CLASS	"battery"
+#define ACPI_SBS_COMPONENT	0x00080000
+#define _COMPONENT		ACPI_SBS_COMPONENT
+static struct proc_dir_entry *acpi_ac_dir;
+static struct proc_dir_entry *acpi_battery_dir;
+
+static struct semaphore cm_sbs_sem;
+
+static int lock_ac_dir_cnt = 0;
+static int lock_battery_dir_cnt = 0;
+
+struct proc_dir_entry *acpi_lock_ac_dir(void)
+{
+
+	down(&cm_sbs_sem);
+	if (!acpi_ac_dir) {
+		acpi_ac_dir = proc_mkdir(ACPI_AC_CLASS, acpi_root_dir);
+	}
+	if (acpi_ac_dir) {
+		lock_ac_dir_cnt++;
+	} else {
+		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+				  "Cannot create %s\n", ACPI_AC_CLASS));
+	}
+	up(&cm_sbs_sem);
+	return acpi_ac_dir;
+}
+
+EXPORT_SYMBOL(acpi_lock_ac_dir);
+
+void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir_param)
+{
+
+	down(&cm_sbs_sem);
+	if (acpi_ac_dir_param) {
+		lock_ac_dir_cnt--;
+	}
+	if (lock_ac_dir_cnt == 0 && acpi_ac_dir_param && acpi_ac_dir) {
+		remove_proc_entry(ACPI_AC_CLASS, acpi_root_dir);
+		acpi_ac_dir = 0;
+	}
+	up(&cm_sbs_sem);
+}
+
+EXPORT_SYMBOL(acpi_unlock_ac_dir);
+
+struct proc_dir_entry *acpi_lock_battery_dir(void)
+{
+
+	down(&cm_sbs_sem);
+	if (!acpi_battery_dir) {
+		acpi_battery_dir =
+		    proc_mkdir(ACPI_BATTERY_CLASS, acpi_root_dir);
+	}
+	if (acpi_battery_dir) {
+		lock_battery_dir_cnt++;
+	} else {
+		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+				  "Cannot create %s\n", ACPI_BATTERY_CLASS));
+	}
+	up(&cm_sbs_sem);
+	return acpi_battery_dir;
+}
+
+EXPORT_SYMBOL(acpi_lock_battery_dir);
+
+void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir_param)
+{
+
+	down(&cm_sbs_sem);
+	if (acpi_battery_dir_param) {
+		lock_battery_dir_cnt--;
+	}
+	if (lock_battery_dir_cnt == 0 && acpi_battery_dir_param
+	    && acpi_battery_dir) {
+		remove_proc_entry(ACPI_BATTERY_CLASS, acpi_root_dir);
+		acpi_battery_dir = 0;
+	}
+	up(&cm_sbs_sem);
+	return;
+}
+
+EXPORT_SYMBOL(acpi_unlock_battery_dir);
+
+static int __init acpi_cm_sbs_init(void)
+{
+
+	if (acpi_disabled)
+		return 0;
+
+	init_MUTEX(&cm_sbs_sem);
+
+	return 0;
+}
+
+subsys_initcall(acpi_cm_sbs_init);

drivers/acpi/container.c

@@ -236,7 +236,7 @@ container_walk_namespace_cb(acpi_handle handle,
 	}
 
       end:
-	acpi_os_free(buffer.pointer);
+	kfree(buffer.pointer);
 
 	return AE_OK;
 }

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;

drivers/acpi/glue.c

@@ -152,7 +152,7 @@ static int get_root_bridge_busnr(acpi_handle handle)
 		bbn = bus;
 	}
       exit:
-	acpi_os_free(buffer.pointer);
+	kfree(buffer.pointer);
 	return (int)bbn;
 }
 
@@ -192,7 +192,7 @@ find_pci_rootbridge(acpi_handle handle, u32 lvl, void *context, void **rv)
 		find->handle = handle;
 	status = AE_OK;
       exit:
-	acpi_os_free(buffer.pointer);
+	kfree(buffer.pointer);
 	return status;
 }
 
@@ -224,7 +224,7 @@ do_acpi_find_child(acpi_handle handle, u32 lvl, void *context, void **rv)
 		info = buffer.pointer;
 		if (info->address == find->address)
 			find->handle = handle;
-		acpi_os_free(buffer.pointer);
+		kfree(buffer.pointer);
 	}
 	return AE_OK;
 }
@@ -330,7 +330,7 @@ static int acpi_platform_notify(struct device *dev)
 
 		acpi_get_name(dev->firmware_data, ACPI_FULL_PATHNAME, &buffer);
 		DBG("Device %s -> %s\n", dev->bus_id, (char *)buffer.pointer);
-		acpi_os_free(buffer.pointer);
+		kfree(buffer.pointer);
 	} else
 		DBG("Device %s -> No ACPI support\n", dev->bus_id);
 #endif

drivers/acpi/i2c_ec.h

+/*
+ * SMBus driver for ACPI Embedded Controller ($Revision: 1.2 $)
+ *
+ * Copyright (c) 2002, 2005 Ducrot Bruno
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation version 2.
+ */
+
+struct acpi_ec_smbus {
+	struct i2c_adapter adapter;
+	union acpi_ec *ec;
+	int base;
+	int alert;
+};
+
+struct acpi_ec_hc {
+	acpi_handle handle;
+	struct acpi_ec_smbus *smbus;
+};
+
+struct acpi_ec_hc *acpi_get_ec_hc(struct acpi_device *device);

drivers/acpi/namespace/nsxfeval.c

@@ -133,7 +133,7 @@ acpi_evaluate_object_typed(acpi_handle handle,
 
 		/* Caller used ACPI_ALLOCATE_BUFFER, free the return buffer */
 
-		acpi_os_free(return_buffer->pointer);
+		ACPI_FREE(return_buffer->pointer);
 		return_buffer->pointer = NULL;
 	}
 

drivers/acpi/numa.c

@@ -259,12 +259,10 @@ int acpi_get_node(acpi_handle *handle)
 {
 	int pxm, node = -1;
 
-	ACPI_FUNCTION_TRACE("acpi_get_node");
-
 	pxm = acpi_get_pxm(handle);
 	if (pxm >= 0)
 		node = acpi_map_pxm_to_node(pxm);
 
-	return_VALUE(node);
+	return node;
 }
 EXPORT_SYMBOL(acpi_get_node);

drivers/acpi/osl.c

@@ -146,13 +146,6 @@ void *acpi_os_allocate(acpi_size size)
 		return kmalloc(size, GFP_KERNEL);
 }
 
-void acpi_os_free(void *ptr)
-{
-	kfree(ptr);
-}
-
-EXPORT_SYMBOL(acpi_os_free);
-
 acpi_status acpi_os_get_root_pointer(u32 flags, struct acpi_pointer *addr)
 {
 	if (efi_enabled) {
@@ -742,7 +735,7 @@ acpi_status acpi_os_delete_semaphore(acpi_handle handle)
 
 	ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Deleting semaphore[%p].\n", handle));
 
-	acpi_os_free(sem);
+	kfree(sem);
 	sem = NULL;
 
 	return AE_OK;

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)

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;
 		}

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;

drivers/acpi/processor_idle.c

@@ -768,7 +768,7 @@ static int acpi_processor_get_power_info_cst(struct acpi_processor *pr)
 		status = -EFAULT;
 
       end:
-	acpi_os_free(buffer.pointer);
+	kfree(buffer.pointer);
 
 	return status;
 }

drivers/acpi/processor_perflib.c

@@ -216,7 +216,7 @@ static int acpi_processor_get_performance_control(struct acpi_processor *pr)
 	       sizeof(struct acpi_pct_register));
 
       end:
-	acpi_os_free(buffer.pointer);
+	kfree(buffer.pointer);
 
 	return result;
 }
@@ -294,7 +294,7 @@ static int acpi_processor_get_performance_states(struct acpi_processor *pr)
 	}
 
       end:
-	acpi_os_free(buffer.pointer);
+	kfree(buffer.pointer);
 
 	return result;
 }
@@ -592,7 +592,7 @@ static int acpi_processor_get_psd(struct acpi_processor	*pr)
 	}
 
 end:
-	acpi_os_free(buffer.pointer);
+	kfree(buffer.pointer);
 	return result;
 }
 

drivers/acpi/scan.c

@@ -319,7 +319,7 @@ static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
 		goto end;
 	}
 
-	acpi_os_free(buffer.pointer);
+	kfree(buffer.pointer);
 
 	device->wakeup.flags.valid = 1;
 	/* Power button, Lid switch always enable wakeup */
@@ -854,7 +854,7 @@ static void acpi_device_set_id(struct acpi_device *device,
 			printk(KERN_ERR "Memory allocation error\n");
 	}
 
-	acpi_os_free(buffer.pointer);
+	kfree(buffer.pointer);
 }
 
 static int acpi_device_set_context(struct acpi_device *device, int type)

drivers/acpi/system.c

@@ -86,7 +86,7 @@ acpi_system_read_dsdt(struct file *file,
 
 	res = simple_read_from_buffer(buffer, count, ppos,
 				      dsdt.pointer, dsdt.length);
-	acpi_os_free(dsdt.pointer);
+	kfree(dsdt.pointer);
 
 	return res;
 }
@@ -113,7 +113,7 @@ acpi_system_read_fadt(struct file *file,
 
 	res = simple_read_from_buffer(buffer, count, ppos,
 				      fadt.pointer, fadt.length);
-	acpi_os_free(fadt.pointer);
+	kfree(fadt.pointer);
 
 	return res;
 }

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);
 

drivers/acpi/utilities/utalloc.c

@@ -166,10 +166,10 @@ acpi_status acpi_ut_delete_caches(void)
 
 	/* Free memory lists */
 
-	acpi_os_free(acpi_gbl_global_list);
+	ACPI_FREE(acpi_gbl_global_list);
 	acpi_gbl_global_list = NULL;
 
-	acpi_os_free(acpi_gbl_ns_node_list);
+	ACPI_FREE(acpi_gbl_ns_node_list);
 	acpi_gbl_ns_node_list = NULL;
 #endif
 

drivers/acpi/utilities/utcache.c

@@ -162,7 +162,7 @@ acpi_status acpi_os_delete_cache(struct acpi_memory_list * cache)
 
 	/* Now we can delete the cache object */
 
-	acpi_os_free(cache);
+	ACPI_FREE(cache);
 	return (AE_OK);
 }
 

drivers/acpi/utils.c

@@ -332,7 +332,7 @@ acpi_evaluate_string(acpi_handle handle,
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Return value [%s]\n", *data));
 
-	acpi_os_free(buffer.pointer);
+	kfree(buffer.pointer);
 
 	return AE_OK;
 }
@@ -418,7 +418,7 @@ acpi_evaluate_reference(acpi_handle handle,
 		//kfree(list->handles);
 	}
 
-	acpi_os_free(buffer.pointer);
+	kfree(buffer.pointer);
 
 	return status;
 }

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;
@@ -1450,7 +1446,7 @@ static int acpi_video_device_enumerate(struct acpi_video_bus *video)
 	video->attached_array = active_device_list;
 	video->attached_count = count;
       out:
-	acpi_os_free(buffer.pointer);
+	kfree(buffer.pointer);
 	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);
 

include/acpi/acmacros.h

@@ -726,7 +726,7 @@
 
 #define ACPI_ALLOCATE(a)            acpi_ut_allocate((acpi_size)(a),_COMPONENT,_acpi_module_name,__LINE__)
 #define ACPI_ALLOCATE_ZEROED(a)     acpi_ut_allocate_zeroed((acpi_size)(a), _COMPONENT,_acpi_module_name,__LINE__)
-#define ACPI_FREE(a)                acpi_os_free(a)
+#define ACPI_FREE(a)                kfree(a)
 #define ACPI_MEM_TRACKING(a)
 
 #else

include/acpi/acpiosxf.h

@@ -143,8 +143,6 @@ void acpi_os_release_mutex(acpi_mutex handle);
  */
 void *acpi_os_allocate(acpi_size size);
 
-void acpi_os_free(void *memory);
-
 acpi_status
 acpi_os_map_memory(acpi_physical_address physical_address,
 		   acpi_size size, void __iomem ** logical_address);