aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/acpi
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/Kconfig9
-rw-r--r--drivers/acpi/Makefile1
-rw-r--r--drivers/acpi/ac.c2
-rw-r--r--drivers/acpi/battery.c6
-rw-r--r--drivers/acpi/bus.c4
-rw-r--r--drivers/acpi/button.c4
-rw-r--r--drivers/acpi/cm_sbs.c46
-rw-r--r--drivers/acpi/dispatcher/dsinit.c10
-rw-r--r--drivers/acpi/dispatcher/dsmethod.c23
-rw-r--r--drivers/acpi/dispatcher/dswexec.c4
-rw-r--r--drivers/acpi/dock.c739
-rw-r--r--drivers/acpi/ec.c2
-rw-r--r--drivers/acpi/event.c2
-rw-r--r--drivers/acpi/events/evregion.c44
-rw-r--r--drivers/acpi/events/evxface.c44
-rw-r--r--drivers/acpi/events/evxfregn.c13
-rw-r--r--drivers/acpi/executer/exconfig.c1
-rw-r--r--drivers/acpi/executer/exconvrt.c3
-rw-r--r--drivers/acpi/executer/exmutex.c4
-rw-r--r--drivers/acpi/executer/exsystem.c8
-rw-r--r--drivers/acpi/fan.c2
-rw-r--r--drivers/acpi/hotkey.c10
-rw-r--r--drivers/acpi/namespace/nsalloc.c13
-rw-r--r--drivers/acpi/power.c2
-rw-r--r--drivers/acpi/processor_core.c2
-rw-r--r--drivers/acpi/processor_idle.c2
-rw-r--r--drivers/acpi/scan.c23
-rw-r--r--drivers/acpi/sleep/proc.c6
-rw-r--r--drivers/acpi/system.c6
-rw-r--r--drivers/acpi/tables/tbget.c12
-rw-r--r--drivers/acpi/tables/tbinstal.c21
-rw-r--r--drivers/acpi/tables/tbrsdt.c27
-rw-r--r--drivers/acpi/tables/tbxface.c32
-rw-r--r--drivers/acpi/thermal.c10
-rw-r--r--drivers/acpi/utilities/utdebug.c4
-rw-r--r--drivers/acpi/utilities/utdelete.c13
-rw-r--r--drivers/acpi/utilities/utmisc.c25
-rw-r--r--drivers/acpi/utilities/utmutex.c8
-rw-r--r--drivers/acpi/utilities/utstate.c7
39 files changed, 1016 insertions, 178 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 290c767dd77f..56c5ba874623 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -107,7 +107,6 @@ config ACPI_BUTTON
107config ACPI_VIDEO 107config ACPI_VIDEO
108 tristate "Video" 108 tristate "Video"
109 depends on X86 109 depends on X86
110 default y
111 help 110 help
112 This driver implement the ACPI Extensions For Display Adapters 111 This driver implement the ACPI Extensions For Display Adapters
113 for integrated graphics devices on motherboard, as specified in 112 for integrated graphics devices on motherboard, as specified in
@@ -133,6 +132,12 @@ config ACPI_FAN
133 This driver adds support for ACPI fan devices, allowing user-mode 132 This driver adds support for ACPI fan devices, allowing user-mode
134 applications to perform basic fan control (on, off, status). 133 applications to perform basic fan control (on, off, status).
135 134
135config ACPI_DOCK
136 tristate "Dock"
137 depends on EXPERIMENTAL
138 help
139 This driver adds support for ACPI controlled docking stations
140
136config ACPI_PROCESSOR 141config ACPI_PROCESSOR
137 tristate "Processor" 142 tristate "Processor"
138 default y 143 default y
@@ -207,6 +212,7 @@ config ACPI_IBM
207config ACPI_IBM_DOCK 212config ACPI_IBM_DOCK
208 bool "Legacy Docking Station Support" 213 bool "Legacy Docking Station Support"
209 depends on ACPI_IBM 214 depends on ACPI_IBM
215 depends on ACPI_DOCK=n
210 default n 216 default n
211 ---help--- 217 ---help---
212 Allows the ibm_acpi driver to handle docking station events. 218 Allows the ibm_acpi driver to handle docking station events.
@@ -350,7 +356,6 @@ config ACPI_SBS
350 tristate "Smart Battery System (EXPERIMENTAL)" 356 tristate "Smart Battery System (EXPERIMENTAL)"
351 depends on X86 && I2C 357 depends on X86 && I2C
352 depends on EXPERIMENTAL 358 depends on EXPERIMENTAL
353 default y
354 help 359 help
355 This driver adds support for the Smart Battery System. 360 This driver adds support for the Smart Battery System.
356 Depends on I2C (Device Drivers ---> I2C support) 361 Depends on I2C (Device Drivers ---> I2C support)
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index bb5b80a80b18..bce7ca27b429 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -42,6 +42,7 @@ obj-$(CONFIG_ACPI_BATTERY) += battery.o
42obj-$(CONFIG_ACPI_BUTTON) += button.o 42obj-$(CONFIG_ACPI_BUTTON) += button.o
43obj-$(CONFIG_ACPI_EC) += ec.o 43obj-$(CONFIG_ACPI_EC) += ec.o
44obj-$(CONFIG_ACPI_FAN) += fan.o 44obj-$(CONFIG_ACPI_FAN) += fan.o
45obj-$(CONFIG_ACPI_DOCK) += dock.o
45obj-$(CONFIG_ACPI_VIDEO) += video.o 46obj-$(CONFIG_ACPI_VIDEO) += video.o
46obj-$(CONFIG_ACPI_HOTKEY) += hotkey.o 47obj-$(CONFIG_ACPI_HOTKEY) += hotkey.o
47obj-y += pci_root.o pci_link.o pci_irq.o pci_bind.o 48obj-y += pci_root.o pci_link.o pci_irq.o pci_bind.o
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 24ccf81d135f..96309b9660da 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -72,7 +72,7 @@ struct acpi_ac {
72 unsigned long state; 72 unsigned long state;
73}; 73};
74 74
75static struct file_operations acpi_ac_fops = { 75static const struct file_operations acpi_ac_fops = {
76 .open = acpi_ac_open_fs, 76 .open = acpi_ac_open_fs,
77 .read = seq_read, 77 .read = seq_read,
78 .llseek = seq_lseek, 78 .llseek = seq_lseek,
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 24bf4dca88cc..6e5221707d97 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -557,7 +557,7 @@ static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file)
557 return single_open(file, acpi_battery_read_alarm, PDE(inode)->data); 557 return single_open(file, acpi_battery_read_alarm, PDE(inode)->data);
558} 558}
559 559
560static struct file_operations acpi_battery_info_ops = { 560static const struct file_operations acpi_battery_info_ops = {
561 .open = acpi_battery_info_open_fs, 561 .open = acpi_battery_info_open_fs,
562 .read = seq_read, 562 .read = seq_read,
563 .llseek = seq_lseek, 563 .llseek = seq_lseek,
@@ -565,7 +565,7 @@ static struct file_operations acpi_battery_info_ops = {
565 .owner = THIS_MODULE, 565 .owner = THIS_MODULE,
566}; 566};
567 567
568static struct file_operations acpi_battery_state_ops = { 568static const struct file_operations acpi_battery_state_ops = {
569 .open = acpi_battery_state_open_fs, 569 .open = acpi_battery_state_open_fs,
570 .read = seq_read, 570 .read = seq_read,
571 .llseek = seq_lseek, 571 .llseek = seq_lseek,
@@ -573,7 +573,7 @@ static struct file_operations acpi_battery_state_ops = {
573 .owner = THIS_MODULE, 573 .owner = THIS_MODULE,
574}; 574};
575 575
576static struct file_operations acpi_battery_alarm_ops = { 576static const struct file_operations acpi_battery_alarm_ops = {
577 .open = acpi_battery_alarm_open_fs, 577 .open = acpi_battery_alarm_open_fs,
578 .read = seq_read, 578 .read = seq_read,
579 .write = acpi_battery_write_alarm, 579 .write = acpi_battery_write_alarm,
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index ea5a0496a4fd..b2977695e120 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -192,8 +192,8 @@ int acpi_bus_set_power(acpi_handle handle, int state)
192 /* Make sure this is a valid target state */ 192 /* Make sure this is a valid target state */
193 193
194 if (!device->flags.power_manageable) { 194 if (!device->flags.power_manageable) {
195 printk(KERN_DEBUG "Device `[%s]' is not power manageable", 195 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device `[%s]' is not power manageable",
196 device->kobj.name); 196 device->kobj.name));
197 return -ENODEV; 197 return -ENODEV;
198 } 198 }
199 /* 199 /*
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index fd1ba05eab68..5ef885e82c78 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -87,14 +87,14 @@ struct acpi_button {
87 unsigned long pushed; 87 unsigned long pushed;
88}; 88};
89 89
90static struct file_operations acpi_button_info_fops = { 90static const struct file_operations acpi_button_info_fops = {
91 .open = acpi_button_info_open_fs, 91 .open = acpi_button_info_open_fs,
92 .read = seq_read, 92 .read = seq_read,
93 .llseek = seq_lseek, 93 .llseek = seq_lseek,
94 .release = single_release, 94 .release = single_release,
95}; 95};
96 96
97static struct file_operations acpi_button_state_fops = { 97static const struct file_operations acpi_button_state_fops = {
98 .open = acpi_button_state_open_fs, 98 .open = acpi_button_state_open_fs,
99 .read = seq_read, 99 .read = seq_read,
100 .llseek = seq_lseek, 100 .llseek = seq_lseek,
diff --git a/drivers/acpi/cm_sbs.c b/drivers/acpi/cm_sbs.c
index 574a75a166c5..a01ce6700bfe 100644
--- a/drivers/acpi/cm_sbs.c
+++ b/drivers/acpi/cm_sbs.c
@@ -39,50 +39,43 @@ ACPI_MODULE_NAME("cm_sbs")
39static struct proc_dir_entry *acpi_ac_dir; 39static struct proc_dir_entry *acpi_ac_dir;
40static struct proc_dir_entry *acpi_battery_dir; 40static struct proc_dir_entry *acpi_battery_dir;
41 41
42static struct semaphore cm_sbs_sem; 42static DEFINE_MUTEX(cm_sbs_mutex);
43 43
44static int lock_ac_dir_cnt = 0; 44static int lock_ac_dir_cnt;
45static int lock_battery_dir_cnt = 0; 45static int lock_battery_dir_cnt;
46 46
47struct proc_dir_entry *acpi_lock_ac_dir(void) 47struct proc_dir_entry *acpi_lock_ac_dir(void)
48{ 48{
49 49 mutex_lock(&cm_sbs_mutex);
50 down(&cm_sbs_sem); 50 if (!acpi_ac_dir)
51 if (!acpi_ac_dir) {
52 acpi_ac_dir = proc_mkdir(ACPI_AC_CLASS, acpi_root_dir); 51 acpi_ac_dir = proc_mkdir(ACPI_AC_CLASS, acpi_root_dir);
53 }
54 if (acpi_ac_dir) { 52 if (acpi_ac_dir) {
55 lock_ac_dir_cnt++; 53 lock_ac_dir_cnt++;
56 } else { 54 } else {
57 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, 55 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
58 "Cannot create %s\n", ACPI_AC_CLASS)); 56 "Cannot create %s\n", ACPI_AC_CLASS));
59 } 57 }
60 up(&cm_sbs_sem); 58 mutex_unlock(&cm_sbs_mutex);
61 return acpi_ac_dir; 59 return acpi_ac_dir;
62} 60}
63
64EXPORT_SYMBOL(acpi_lock_ac_dir); 61EXPORT_SYMBOL(acpi_lock_ac_dir);
65 62
66void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir_param) 63void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir_param)
67{ 64{
68 65 mutex_lock(&cm_sbs_mutex);
69 down(&cm_sbs_sem); 66 if (acpi_ac_dir_param)
70 if (acpi_ac_dir_param) {
71 lock_ac_dir_cnt--; 67 lock_ac_dir_cnt--;
72 }
73 if (lock_ac_dir_cnt == 0 && acpi_ac_dir_param && acpi_ac_dir) { 68 if (lock_ac_dir_cnt == 0 && acpi_ac_dir_param && acpi_ac_dir) {
74 remove_proc_entry(ACPI_AC_CLASS, acpi_root_dir); 69 remove_proc_entry(ACPI_AC_CLASS, acpi_root_dir);
75 acpi_ac_dir = 0; 70 acpi_ac_dir = 0;
76 } 71 }
77 up(&cm_sbs_sem); 72 mutex_unlock(&cm_sbs_mutex);
78} 73}
79
80EXPORT_SYMBOL(acpi_unlock_ac_dir); 74EXPORT_SYMBOL(acpi_unlock_ac_dir);
81 75
82struct proc_dir_entry *acpi_lock_battery_dir(void) 76struct proc_dir_entry *acpi_lock_battery_dir(void)
83{ 77{
84 78 mutex_lock(&cm_sbs_mutex);
85 down(&cm_sbs_sem);
86 if (!acpi_battery_dir) { 79 if (!acpi_battery_dir) {
87 acpi_battery_dir = 80 acpi_battery_dir =
88 proc_mkdir(ACPI_BATTERY_CLASS, acpi_root_dir); 81 proc_mkdir(ACPI_BATTERY_CLASS, acpi_root_dir);
@@ -93,39 +86,28 @@ struct proc_dir_entry *acpi_lock_battery_dir(void)
93 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, 86 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
94 "Cannot create %s\n", ACPI_BATTERY_CLASS)); 87 "Cannot create %s\n", ACPI_BATTERY_CLASS));
95 } 88 }
96 up(&cm_sbs_sem); 89 mutex_unlock(&cm_sbs_mutex);
97 return acpi_battery_dir; 90 return acpi_battery_dir;
98} 91}
99
100EXPORT_SYMBOL(acpi_lock_battery_dir); 92EXPORT_SYMBOL(acpi_lock_battery_dir);
101 93
102void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir_param) 94void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir_param)
103{ 95{
104 96 mutex_lock(&cm_sbs_mutex);
105 down(&cm_sbs_sem); 97 if (acpi_battery_dir_param)
106 if (acpi_battery_dir_param) {
107 lock_battery_dir_cnt--; 98 lock_battery_dir_cnt--;
108 }
109 if (lock_battery_dir_cnt == 0 && acpi_battery_dir_param 99 if (lock_battery_dir_cnt == 0 && acpi_battery_dir_param
110 && acpi_battery_dir) { 100 && acpi_battery_dir) {
111 remove_proc_entry(ACPI_BATTERY_CLASS, acpi_root_dir); 101 remove_proc_entry(ACPI_BATTERY_CLASS, acpi_root_dir);
112 acpi_battery_dir = 0; 102 acpi_battery_dir = 0;
113 } 103 }
114 up(&cm_sbs_sem); 104 mutex_unlock(&cm_sbs_mutex);
115 return; 105 return;
116} 106}
117
118EXPORT_SYMBOL(acpi_unlock_battery_dir); 107EXPORT_SYMBOL(acpi_unlock_battery_dir);
119 108
120static int __init acpi_cm_sbs_init(void) 109static int __init acpi_cm_sbs_init(void)
121{ 110{
122
123 if (acpi_disabled)
124 return 0;
125
126 init_MUTEX(&cm_sbs_sem);
127
128 return 0; 111 return 0;
129} 112}
130
131subsys_initcall(acpi_cm_sbs_init); 113subsys_initcall(acpi_cm_sbs_init);
diff --git a/drivers/acpi/dispatcher/dsinit.c b/drivers/acpi/dispatcher/dsinit.c
index daf51b5b5875..1888c055d10f 100644
--- a/drivers/acpi/dispatcher/dsinit.c
+++ b/drivers/acpi/dispatcher/dsinit.c
@@ -116,16 +116,6 @@ acpi_ds_init_one_object(acpi_handle obj_handle,
116 116
117 case ACPI_TYPE_METHOD: 117 case ACPI_TYPE_METHOD:
118 118
119 /*
120 * Set the execution data width (32 or 64) based upon the
121 * revision number of the parent ACPI table.
122 * TBD: This is really for possible future support of integer width
123 * on a per-table basis. Currently, we just use a global for the width.
124 */
125 if (info->table_desc->pointer->revision == 1) {
126 node->flags |= ANOBJ_DATA_WIDTH_32;
127 }
128
129 info->method_count++; 119 info->method_count++;
130 break; 120 break;
131 121
diff --git a/drivers/acpi/dispatcher/dsmethod.c b/drivers/acpi/dispatcher/dsmethod.c
index a39a33f4847a..cf888add3191 100644
--- a/drivers/acpi/dispatcher/dsmethod.c
+++ b/drivers/acpi/dispatcher/dsmethod.c
@@ -134,7 +134,7 @@ acpi_ds_create_method_mutex(union acpi_operand_object *method_desc)
134 union acpi_operand_object *mutex_desc; 134 union acpi_operand_object *mutex_desc;
135 acpi_status status; 135 acpi_status status;
136 136
137 ACPI_FUNCTION_NAME(ds_create_method_mutex); 137 ACPI_FUNCTION_TRACE(ds_create_method_mutex);
138 138
139 /* Create the new mutex object */ 139 /* Create the new mutex object */
140 140
@@ -493,7 +493,7 @@ acpi_ds_restart_control_method(struct acpi_walk_state *walk_state,
493 493
494 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, 494 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
495 "****Restart [%4.4s] Op %p ReturnValueFromCallee %p\n", 495 "****Restart [%4.4s] Op %p ReturnValueFromCallee %p\n",
496 (char *)&walk_state->method_node->name, 496 acpi_ut_get_node_name(walk_state->method_node),
497 walk_state->method_call_op, return_desc)); 497 walk_state->method_call_op, return_desc));
498 498
499 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, 499 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
@@ -610,6 +610,7 @@ acpi_ds_terminate_control_method(union acpi_operand_object *method_desc,
610 610
611 acpi_os_release_mutex(method_desc->method.mutex->mutex. 611 acpi_os_release_mutex(method_desc->method.mutex->mutex.
612 os_mutex); 612 os_mutex);
613 method_desc->method.mutex->mutex.owner_thread = NULL;
613 } 614 }
614 } 615 }
615 616
@@ -620,27 +621,11 @@ acpi_ds_terminate_control_method(union acpi_operand_object *method_desc,
620 */ 621 */
621 method_node = walk_state->method_node; 622 method_node = walk_state->method_node;
622 623
623 /* Lock namespace for possible update */
624
625 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
626 if (ACPI_FAILURE(status)) {
627 return_VOID;
628 }
629
630 /*
631 * Delete any namespace entries created immediately underneath
632 * the method
633 */
634 if (method_node && method_node->child) {
635 acpi_ns_delete_namespace_subtree(method_node);
636 }
637
638 /* 624 /*
639 * Delete any namespace entries created anywhere else within 625 * Delete any namespace objects created anywhere within
640 * the namespace by the execution of this method 626 * the namespace by the execution of this method
641 */ 627 */
642 acpi_ns_delete_namespace_by_owner(method_desc->method.owner_id); 628 acpi_ns_delete_namespace_by_owner(method_desc->method.owner_id);
643 status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
644 } 629 }
645 630
646 /* Decrement the thread count on the method */ 631 /* Decrement the thread count on the method */
diff --git a/drivers/acpi/dispatcher/dswexec.c b/drivers/acpi/dispatcher/dswexec.c
index b1ded62d0df1..d7a616c3104e 100644
--- a/drivers/acpi/dispatcher/dswexec.c
+++ b/drivers/acpi/dispatcher/dswexec.c
@@ -313,10 +313,10 @@ acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state,
313 case AML_CLASS_EXECUTE: 313 case AML_CLASS_EXECUTE:
314 case AML_CLASS_CREATE: 314 case AML_CLASS_CREATE:
315 /* 315 /*
316 * Most operators with arguments. 316 * Most operators with arguments (except create_xxx_field operators)
317 * Start a new result/operand state 317 * Start a new result/operand state
318 */ 318 */
319 if (walk_state->opcode != AML_CREATE_FIELD_OP) { 319 if (walk_state->op_info->object_type != ACPI_TYPE_BUFFER_FIELD) {
320 status = acpi_ds_result_stack_push(walk_state); 320 status = acpi_ds_result_stack_push(walk_state);
321 } 321 }
322 break; 322 break;
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
new file mode 100644
index 000000000000..510a94524298
--- /dev/null
+++ b/drivers/acpi/dock.c
@@ -0,0 +1,739 @@
1/*
2 * dock.c - ACPI dock station driver
3 *
4 * Copyright (C) 2006 Kristen Carlson Accardi <kristen.c.accardi@intel.com>
5 *
6 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or (at
11 * your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
21 *
22 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
23 */
24
25#include <linux/kernel.h>
26#include <linux/module.h>
27#include <linux/init.h>
28#include <linux/types.h>
29#include <linux/notifier.h>
30#include <acpi/acpi_bus.h>
31#include <acpi/acpi_drivers.h>
32
33#define ACPI_DOCK_DRIVER_NAME "ACPI Dock Station Driver"
34
35ACPI_MODULE_NAME("dock")
36MODULE_AUTHOR("Kristen Carlson Accardi");
37MODULE_DESCRIPTION(ACPI_DOCK_DRIVER_NAME);
38MODULE_LICENSE("GPL");
39
40static struct atomic_notifier_head dock_notifier_list;
41
42struct dock_station {
43 acpi_handle handle;
44 unsigned long last_dock_time;
45 u32 flags;
46 spinlock_t dd_lock;
47 spinlock_t hp_lock;
48 struct list_head dependent_devices;
49 struct list_head hotplug_devices;
50};
51
52struct dock_dependent_device {
53 struct list_head list;
54 struct list_head hotplug_list;
55 acpi_handle handle;
56 acpi_notify_handler handler;
57 void *context;
58};
59
60#define DOCK_DOCKING 0x00000001
61#define DOCK_EVENT KOBJ_DOCK
62#define UNDOCK_EVENT KOBJ_UNDOCK
63
64static struct dock_station *dock_station;
65
66/*****************************************************************************
67 * Dock Dependent device functions *
68 *****************************************************************************/
69/**
70 * alloc_dock_dependent_device - allocate and init a dependent device
71 * @handle: the acpi_handle of the dependent device
72 *
73 * Allocate memory for a dependent device structure for a device referenced
74 * by the acpi handle
75 */
76static struct dock_dependent_device *
77alloc_dock_dependent_device(acpi_handle handle)
78{
79 struct dock_dependent_device *dd;
80
81 dd = kzalloc(sizeof(*dd), GFP_KERNEL);
82 if (dd) {
83 dd->handle = handle;
84 INIT_LIST_HEAD(&dd->list);
85 INIT_LIST_HEAD(&dd->hotplug_list);
86 }
87 return dd;
88}
89
90/**
91 * add_dock_dependent_device - associate a device with the dock station
92 * @ds: The dock station
93 * @dd: The dependent device
94 *
95 * Add the dependent device to the dock's dependent device list.
96 */
97static void
98add_dock_dependent_device(struct dock_station *ds,
99 struct dock_dependent_device *dd)
100{
101 spin_lock(&ds->dd_lock);
102 list_add_tail(&dd->list, &ds->dependent_devices);
103 spin_unlock(&ds->dd_lock);
104}
105
106/**
107 * dock_add_hotplug_device - associate a hotplug handler with the dock station
108 * @ds: The dock station
109 * @dd: The dependent device struct
110 *
111 * Add the dependent device to the dock's hotplug device list
112 */
113static void
114dock_add_hotplug_device(struct dock_station *ds,
115 struct dock_dependent_device *dd)
116{
117 spin_lock(&ds->hp_lock);
118 list_add_tail(&dd->hotplug_list, &ds->hotplug_devices);
119 spin_unlock(&ds->hp_lock);
120}
121
122/**
123 * dock_del_hotplug_device - remove a hotplug handler from the dock station
124 * @ds: The dock station
125 * @dd: the dependent device struct
126 *
127 * Delete the dependent device from the dock's hotplug device list
128 */
129static void
130dock_del_hotplug_device(struct dock_station *ds,
131 struct dock_dependent_device *dd)
132{
133 spin_lock(&ds->hp_lock);
134 list_del(&dd->hotplug_list);
135 spin_unlock(&ds->hp_lock);
136}
137
138/**
139 * find_dock_dependent_device - get a device dependent on this dock
140 * @ds: the dock station
141 * @handle: the acpi_handle of the device we want
142 *
143 * iterate over the dependent device list for this dock. If the
144 * dependent device matches the handle, return.
145 */
146static struct dock_dependent_device *
147find_dock_dependent_device(struct dock_station *ds, acpi_handle handle)
148{
149 struct dock_dependent_device *dd;
150
151 spin_lock(&ds->dd_lock);
152 list_for_each_entry(dd, &ds->dependent_devices, list) {
153 if (handle == dd->handle) {
154 spin_unlock(&ds->dd_lock);
155 return dd;
156 }
157 }
158 spin_unlock(&ds->dd_lock);
159 return NULL;
160}
161
162/*****************************************************************************
163 * Dock functions *
164 *****************************************************************************/
165/**
166 * is_dock - see if a device is a dock station
167 * @handle: acpi handle of the device
168 *
169 * If an acpi object has a _DCK method, then it is by definition a dock
170 * station, so return true.
171 */
172static int is_dock(acpi_handle handle)
173{
174 acpi_status status;
175 acpi_handle tmp;
176
177 status = acpi_get_handle(handle, "_DCK", &tmp);
178 if (ACPI_FAILURE(status))
179 return 0;
180 return 1;
181}
182
183/**
184 * is_dock_device - see if a device is on a dock station
185 * @handle: acpi handle of the device
186 *
187 * If this device is either the dock station itself,
188 * or is a device dependent on the dock station, then it
189 * is a dock device
190 */
191int is_dock_device(acpi_handle handle)
192{
193 if (!dock_station)
194 return 0;
195
196 if (is_dock(handle) || find_dock_dependent_device(dock_station, handle))
197 return 1;
198
199 return 0;
200}
201
202EXPORT_SYMBOL_GPL(is_dock_device);
203
204/**
205 * dock_present - see if the dock station is present.
206 * @ds: the dock station
207 *
208 * execute the _STA method. note that present does not
209 * imply that we are docked.
210 */
211static int dock_present(struct dock_station *ds)
212{
213 unsigned long sta;
214 acpi_status status;
215
216 if (ds) {
217 status = acpi_evaluate_integer(ds->handle, "_STA", NULL, &sta);
218 if (ACPI_SUCCESS(status) && sta)
219 return 1;
220 }
221 return 0;
222}
223
224
225
226/**
227 * dock_create_acpi_device - add new devices to acpi
228 * @handle - handle of the device to add
229 *
230 * This function will create a new acpi_device for the given
231 * handle if one does not exist already. This should cause
232 * acpi to scan for drivers for the given devices, and call
233 * matching driver's add routine.
234 *
235 * Returns a pointer to the acpi_device corresponding to the handle.
236 */
237static struct acpi_device * dock_create_acpi_device(acpi_handle handle)
238{
239 struct acpi_device *device = NULL;
240 struct acpi_device *parent_device;
241 acpi_handle parent;
242 int ret;
243
244 if (acpi_bus_get_device(handle, &device)) {
245 /*
246 * no device created for this object,
247 * so we should create one.
248 */
249 acpi_get_parent(handle, &parent);
250 if (acpi_bus_get_device(parent, &parent_device))
251 parent_device = NULL;
252
253 ret = acpi_bus_add(&device, parent_device, handle,
254 ACPI_BUS_TYPE_DEVICE);
255 if (ret) {
256 pr_debug("error adding bus, %x\n",
257 -ret);
258 return NULL;
259 }
260 }
261 return device;
262}
263
264/**
265 * dock_remove_acpi_device - remove the acpi_device struct from acpi
266 * @handle - the handle of the device to remove
267 *
268 * Tell acpi to remove the acpi_device. This should cause any loaded
269 * driver to have it's remove routine called.
270 */
271static void dock_remove_acpi_device(acpi_handle handle)
272{
273 struct acpi_device *device;
274 int ret;
275
276 if (!acpi_bus_get_device(handle, &device)) {
277 ret = acpi_bus_trim(device, 1);
278 if (ret)
279 pr_debug("error removing bus, %x\n", -ret);
280 }
281}
282
283
284/**
285 * hotplug_dock_devices - insert or remove devices on the dock station
286 * @ds: the dock station
287 * @event: either bus check or eject request
288 *
289 * Some devices on the dock station need to have drivers called
290 * to perform hotplug operations after a dock event has occurred.
291 * Traverse the list of dock devices that have registered a
292 * hotplug handler, and call the handler.
293 */
294static void hotplug_dock_devices(struct dock_station *ds, u32 event)
295{
296 struct dock_dependent_device *dd;
297
298 spin_lock(&ds->hp_lock);
299
300 /*
301 * First call driver specific hotplug functions
302 */
303 list_for_each_entry(dd, &ds->hotplug_devices, hotplug_list) {
304 if (dd->handler)
305 dd->handler(dd->handle, event, dd->context);
306 }
307
308 /*
309 * Now make sure that an acpi_device is created for each
310 * dependent device, or removed if this is an eject request.
311 * This will cause acpi_drivers to be stopped/started if they
312 * exist
313 */
314 list_for_each_entry(dd, &ds->dependent_devices, list) {
315 if (event == ACPI_NOTIFY_EJECT_REQUEST)
316 dock_remove_acpi_device(dd->handle);
317 else
318 dock_create_acpi_device(dd->handle);
319 }
320 spin_unlock(&ds->hp_lock);
321}
322
323static void dock_event(struct dock_station *ds, u32 event, int num)
324{
325 struct acpi_device *device;
326
327 device = dock_create_acpi_device(ds->handle);
328 if (device)
329 kobject_uevent(&device->kobj, num);
330}
331
332/**
333 * eject_dock - respond to a dock eject request
334 * @ds: the dock station
335 *
336 * This is called after _DCK is called, to execute the dock station's
337 * _EJ0 method.
338 */
339static void eject_dock(struct dock_station *ds)
340{
341 struct acpi_object_list arg_list;
342 union acpi_object arg;
343 acpi_status status;
344 acpi_handle tmp;
345
346 /* all dock devices should have _EJ0, but check anyway */
347 status = acpi_get_handle(ds->handle, "_EJ0", &tmp);
348 if (ACPI_FAILURE(status)) {
349 pr_debug("No _EJ0 support for dock device\n");
350 return;
351 }
352
353 arg_list.count = 1;
354 arg_list.pointer = &arg;
355 arg.type = ACPI_TYPE_INTEGER;
356 arg.integer.value = 1;
357
358 if (ACPI_FAILURE(acpi_evaluate_object(ds->handle, "_EJ0",
359 &arg_list, NULL)))
360 pr_debug("Failed to evaluate _EJ0!\n");
361}
362
363/**
364 * handle_dock - handle a dock event
365 * @ds: the dock station
366 * @dock: to dock, or undock - that is the question
367 *
368 * Execute the _DCK method in response to an acpi event
369 */
370static void handle_dock(struct dock_station *ds, int dock)
371{
372 acpi_status status;
373 struct acpi_object_list arg_list;
374 union acpi_object arg;
375 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
376 struct acpi_buffer name_buffer = { ACPI_ALLOCATE_BUFFER, NULL };
377 union acpi_object *obj;
378
379 acpi_get_name(ds->handle, ACPI_FULL_PATHNAME, &name_buffer);
380 obj = name_buffer.pointer;
381
382 printk(KERN_INFO PREFIX "%s\n", dock ? "docking" : "undocking");
383
384 /* _DCK method has one argument */
385 arg_list.count = 1;
386 arg_list.pointer = &arg;
387 arg.type = ACPI_TYPE_INTEGER;
388 arg.integer.value = dock;
389 status = acpi_evaluate_object(ds->handle, "_DCK", &arg_list, &buffer);
390 if (ACPI_FAILURE(status))
391 pr_debug("%s: failed to execute _DCK\n", obj->string.pointer);
392 kfree(buffer.pointer);
393 kfree(name_buffer.pointer);
394}
395
396static inline void dock(struct dock_station *ds)
397{
398 handle_dock(ds, 1);
399}
400
401static inline void undock(struct dock_station *ds)
402{
403 handle_dock(ds, 0);
404}
405
406static inline void begin_dock(struct dock_station *ds)
407{
408 ds->flags |= DOCK_DOCKING;
409}
410
411static inline void complete_dock(struct dock_station *ds)
412{
413 ds->flags &= ~(DOCK_DOCKING);
414 ds->last_dock_time = jiffies;
415}
416
417/**
418 * dock_in_progress - see if we are in the middle of handling a dock event
419 * @ds: the dock station
420 *
421 * Sometimes while docking, false dock events can be sent to the driver
422 * because good connections aren't made or some other reason. Ignore these
423 * if we are in the middle of doing something.
424 */
425static int dock_in_progress(struct dock_station *ds)
426{
427 if ((ds->flags & DOCK_DOCKING) ||
428 time_before(jiffies, (ds->last_dock_time + HZ)))
429 return 1;
430 return 0;
431}
432
433/**
434 * register_dock_notifier - add yourself to the dock notifier list
435 * @nb: the callers notifier block
436 *
437 * If a driver wishes to be notified about dock events, they can
438 * use this function to put a notifier block on the dock notifier list.
439 * this notifier call chain will be called after a dock event, but
440 * before hotplugging any new devices.
441 */
442int register_dock_notifier(struct notifier_block *nb)
443{
444 return atomic_notifier_chain_register(&dock_notifier_list, nb);
445}
446
447EXPORT_SYMBOL_GPL(register_dock_notifier);
448
449/**
450 * unregister_dock_notifier - remove yourself from the dock notifier list
451 * @nb: the callers notifier block
452 */
453void unregister_dock_notifier(struct notifier_block *nb)
454{
455 atomic_notifier_chain_unregister(&dock_notifier_list, nb);
456}
457
458EXPORT_SYMBOL_GPL(unregister_dock_notifier);
459
460/**
461 * register_hotplug_dock_device - register a hotplug function
462 * @handle: the handle of the device
463 * @handler: the acpi_notifier_handler to call after docking
464 * @context: device specific data
465 *
466 * If a driver would like to perform a hotplug operation after a dock
467 * event, they can register an acpi_notifiy_handler to be called by
468 * the dock driver after _DCK is executed.
469 */
470int
471register_hotplug_dock_device(acpi_handle handle, acpi_notify_handler handler,
472 void *context)
473{
474 struct dock_dependent_device *dd;
475
476 if (!dock_station)
477 return -ENODEV;
478
479 /*
480 * make sure this handle is for a device dependent on the dock,
481 * this would include the dock station itself
482 */
483 dd = find_dock_dependent_device(dock_station, handle);
484 if (dd) {
485 dd->handler = handler;
486 dd->context = context;
487 dock_add_hotplug_device(dock_station, dd);
488 return 0;
489 }
490
491 return -EINVAL;
492}
493
494EXPORT_SYMBOL_GPL(register_hotplug_dock_device);
495
496/**
497 * unregister_hotplug_dock_device - remove yourself from the hotplug list
498 * @handle: the acpi handle of the device
499 */
500void unregister_hotplug_dock_device(acpi_handle handle)
501{
502 struct dock_dependent_device *dd;
503
504 if (!dock_station)
505 return;
506
507 dd = find_dock_dependent_device(dock_station, handle);
508 if (dd)
509 dock_del_hotplug_device(dock_station, dd);
510}
511
512EXPORT_SYMBOL_GPL(unregister_hotplug_dock_device);
513
514/**
515 * dock_notify - act upon an acpi dock notification
516 * @handle: the dock station handle
517 * @event: the acpi event
518 * @data: our driver data struct
519 *
520 * If we are notified to dock, then check to see if the dock is
521 * present and then dock. Notify all drivers of the dock event,
522 * and then hotplug and devices that may need hotplugging. For undock
523 * check to make sure the dock device is still present, then undock
524 * and hotremove all the devices that may need removing.
525 */
526static void dock_notify(acpi_handle handle, u32 event, void *data)
527{
528 struct dock_station *ds = (struct dock_station *)data;
529
530 switch (event) {
531 case ACPI_NOTIFY_BUS_CHECK:
532 if (!dock_in_progress(ds) && dock_present(ds)) {
533 begin_dock(ds);
534 dock(ds);
535 if (!dock_present(ds)) {
536 printk(KERN_ERR PREFIX "Unable to dock!\n");
537 break;
538 }
539 atomic_notifier_call_chain(&dock_notifier_list,
540 event, NULL);
541 hotplug_dock_devices(ds, event);
542 complete_dock(ds);
543 dock_event(ds, event, DOCK_EVENT);
544 }
545 break;
546 case ACPI_NOTIFY_DEVICE_CHECK:
547 /*
548 * According to acpi spec 3.0a, if a DEVICE_CHECK notification
549 * is sent and _DCK is present, it is assumed to mean an
550 * undock request. This notify routine will only be called
551 * for objects defining _DCK, so we will fall through to eject
552 * request here. However, we will pass an eject request through
553 * to the driver who wish to hotplug.
554 */
555 case ACPI_NOTIFY_EJECT_REQUEST:
556 if (!dock_in_progress(ds) && dock_present(ds)) {
557 /*
558 * here we need to generate the undock
559 * event prior to actually doing the undock
560 * so that the device struct still exists.
561 */
562 dock_event(ds, event, UNDOCK_EVENT);
563 hotplug_dock_devices(ds, ACPI_NOTIFY_EJECT_REQUEST);
564 undock(ds);
565 eject_dock(ds);
566 if (dock_present(ds))
567 printk(KERN_ERR PREFIX "Unable to undock!\n");
568 }
569 break;
570 default:
571 printk(KERN_ERR PREFIX "Unknown dock event %d\n", event);
572 }
573}
574
575/**
576 * find_dock_devices - find devices on the dock station
577 * @handle: the handle of the device we are examining
578 * @lvl: unused
579 * @context: the dock station private data
580 * @rv: unused
581 *
582 * This function is called by acpi_walk_namespace. It will
583 * check to see if an object has an _EJD method. If it does, then it
584 * will see if it is dependent on the dock station.
585 */
586static acpi_status
587find_dock_devices(acpi_handle handle, u32 lvl, void *context, void **rv)
588{
589 acpi_status status;
590 acpi_handle tmp;
591 struct dock_station *ds = (struct dock_station *)context;
592 struct dock_dependent_device *dd;
593
594 status = acpi_bus_get_ejd(handle, &tmp);
595 if (ACPI_FAILURE(status))
596 return AE_OK;
597
598 if (tmp == ds->handle) {
599 dd = alloc_dock_dependent_device(handle);
600 if (dd)
601 add_dock_dependent_device(ds, dd);
602 }
603
604 return AE_OK;
605}
606
607/**
608 * dock_add - add a new dock station
609 * @handle: the dock station handle
610 *
611 * allocated and initialize a new dock station device. Find all devices
612 * that are on the dock station, and register for dock event notifications.
613 */
614static int dock_add(acpi_handle handle)
615{
616 int ret;
617 acpi_status status;
618 struct dock_dependent_device *dd;
619
620 /* allocate & initialize the dock_station private data */
621 dock_station = kzalloc(sizeof(*dock_station), GFP_KERNEL);
622 if (!dock_station)
623 return -ENOMEM;
624 dock_station->handle = handle;
625 dock_station->last_dock_time = jiffies - HZ;
626 INIT_LIST_HEAD(&dock_station->dependent_devices);
627 INIT_LIST_HEAD(&dock_station->hotplug_devices);
628 spin_lock_init(&dock_station->dd_lock);
629 spin_lock_init(&dock_station->hp_lock);
630
631 /* Find dependent devices */
632 acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
633 ACPI_UINT32_MAX, find_dock_devices, dock_station,
634 NULL);
635
636 /* add the dock station as a device dependent on itself */
637 dd = alloc_dock_dependent_device(handle);
638 if (!dd) {
639 kfree(dock_station);
640 return -ENOMEM;
641 }
642 add_dock_dependent_device(dock_station, dd);
643
644 /* register for dock events */
645 status = acpi_install_notify_handler(dock_station->handle,
646 ACPI_SYSTEM_NOTIFY,
647 dock_notify, dock_station);
648
649 if (ACPI_FAILURE(status)) {
650 printk(KERN_ERR PREFIX "Error installing notify handler\n");
651 ret = -ENODEV;
652 goto dock_add_err;
653 }
654
655 printk(KERN_INFO PREFIX "%s \n", ACPI_DOCK_DRIVER_NAME);
656
657 return 0;
658
659dock_add_err:
660 kfree(dock_station);
661 kfree(dd);
662 return ret;
663}
664
665/**
666 * dock_remove - free up resources related to the dock station
667 */
668static int dock_remove(void)
669{
670 struct dock_dependent_device *dd, *tmp;
671 acpi_status status;
672
673 if (!dock_station)
674 return 0;
675
676 /* remove dependent devices */
677 list_for_each_entry_safe(dd, tmp, &dock_station->dependent_devices,
678 list)
679 kfree(dd);
680
681 /* remove dock notify handler */
682 status = acpi_remove_notify_handler(dock_station->handle,
683 ACPI_SYSTEM_NOTIFY,
684 dock_notify);
685 if (ACPI_FAILURE(status))
686 printk(KERN_ERR "Error removing notify handler\n");
687
688 /* free dock station memory */
689 kfree(dock_station);
690 return 0;
691}
692
693/**
694 * find_dock - look for a dock station
695 * @handle: acpi handle of a device
696 * @lvl: unused
697 * @context: counter of dock stations found
698 * @rv: unused
699 *
700 * This is called by acpi_walk_namespace to look for dock stations.
701 */
702static acpi_status
703find_dock(acpi_handle handle, u32 lvl, void *context, void **rv)
704{
705 int *count = (int *)context;
706 acpi_status status = AE_OK;
707
708 if (is_dock(handle)) {
709 if (dock_add(handle) >= 0) {
710 (*count)++;
711 status = AE_CTRL_TERMINATE;
712 }
713 }
714 return status;
715}
716
717static int __init dock_init(void)
718{
719 int num = 0;
720
721 dock_station = NULL;
722
723 /* look for a dock station */
724 acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
725 ACPI_UINT32_MAX, find_dock, &num, NULL);
726
727 if (!num)
728 return -ENODEV;
729
730 return 0;
731}
732
733static void __exit dock_exit(void)
734{
735 dock_remove();
736}
737
738postcore_initcall(dock_init);
739module_exit(dock_exit);
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 8c5d7df7d343..e5d796362854 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -929,7 +929,7 @@ static int acpi_ec_info_open_fs(struct inode *inode, struct file *file)
929 return single_open(file, acpi_ec_read_info, PDE(inode)->data); 929 return single_open(file, acpi_ec_read_info, PDE(inode)->data);
930} 930}
931 931
932static struct file_operations acpi_ec_info_ops = { 932static const struct file_operations acpi_ec_info_ops = {
933 .open = acpi_ec_info_open_fs, 933 .open = acpi_ec_info_open_fs,
934 .read = seq_read, 934 .read = seq_read,
935 .llseek = seq_lseek, 935 .llseek = seq_lseek,
diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c
index a901b23e95e7..959a893c8d1f 100644
--- a/drivers/acpi/event.c
+++ b/drivers/acpi/event.c
@@ -99,7 +99,7 @@ static unsigned int acpi_system_poll_event(struct file *file, poll_table * wait)
99 return 0; 99 return 0;
100} 100}
101 101
102static struct file_operations acpi_system_event_ops = { 102static const struct file_operations acpi_system_event_ops = {
103 .open = acpi_system_open_event, 103 .open = acpi_system_open_event,
104 .read = acpi_system_read_event, 104 .read = acpi_system_read_event,
105 .release = acpi_system_close_event, 105 .release = acpi_system_close_event,
diff --git a/drivers/acpi/events/evregion.c b/drivers/acpi/events/evregion.c
index 094a17e4c86d..21caae04fe85 100644
--- a/drivers/acpi/events/evregion.c
+++ b/drivers/acpi/events/evregion.c
@@ -528,34 +528,40 @@ acpi_ev_detach_region(union acpi_operand_object *region_obj,
528 } 528 }
529 } 529 }
530 530
531 /* Call the setup handler with the deactivate notification */ 531 /*
532 * If the region has been activated, call the setup handler
533 * with the deactivate notification
534 */
535 if (region_obj->region.flags & AOPOBJ_SETUP_COMPLETE) {
536 region_setup = handler_obj->address_space.setup;
537 status =
538 region_setup(region_obj,
539 ACPI_REGION_DEACTIVATE,
540 handler_obj->address_space.
541 context, region_context);
532 542
533 region_setup = handler_obj->address_space.setup; 543 /* Init routine may fail, Just ignore errors */
534 status =
535 region_setup(region_obj, ACPI_REGION_DEACTIVATE,
536 handler_obj->address_space.context,
537 region_context);
538 544
539 /* Init routine may fail, Just ignore errors */ 545 if (ACPI_FAILURE(status)) {
546 ACPI_EXCEPTION((AE_INFO, status,
547 "from region handler - deactivate, [%s]",
548 acpi_ut_get_region_name
549 (region_obj->region.
550 space_id)));
551 }
540 552
541 if (ACPI_FAILURE(status)) { 553 region_obj->region.flags &=
542 ACPI_EXCEPTION((AE_INFO, status, 554 ~(AOPOBJ_SETUP_COMPLETE);
543 "from region init, [%s]",
544 acpi_ut_get_region_name
545 (region_obj->region.space_id)));
546 } 555 }
547 556
548 region_obj->region.flags &= ~(AOPOBJ_SETUP_COMPLETE);
549
550 /* 557 /*
551 * Remove handler reference in the region 558 * Remove handler reference in the region
552 * 559 *
553 * NOTE: this doesn't mean that the region goes away 560 * NOTE: this doesn't mean that the region goes away, the region
554 * The region is just inaccessible as indicated to 561 * is just inaccessible as indicated to the _REG method
555 * the _REG method
556 * 562 *
557 * If the region is on the handler's list 563 * If the region is on the handler's list, this must be the
558 * this better be the region's handler 564 * region's handler
559 */ 565 */
560 region_obj->region.handler = NULL; 566 region_obj->region.handler = NULL;
561 acpi_ut_remove_reference(handler_obj); 567 acpi_ut_remove_reference(handler_obj);
diff --git a/drivers/acpi/events/evxface.c b/drivers/acpi/events/evxface.c
index 4f948df17ab9..923fd2b46955 100644
--- a/drivers/acpi/events/evxface.c
+++ b/drivers/acpi/events/evxface.c
@@ -428,7 +428,7 @@ acpi_remove_notify_handler(acpi_handle device,
428 node = acpi_ns_map_handle_to_node(device); 428 node = acpi_ns_map_handle_to_node(device);
429 if (!node) { 429 if (!node) {
430 status = AE_BAD_PARAMETER; 430 status = AE_BAD_PARAMETER;
431 goto unlock; 431 goto unlock_and_exit;
432 } 432 }
433 433
434 /* Root Object */ 434 /* Root Object */
@@ -442,7 +442,7 @@ acpi_remove_notify_handler(acpi_handle device,
442 ((handler_type & ACPI_DEVICE_NOTIFY) && 442 ((handler_type & ACPI_DEVICE_NOTIFY) &&
443 !acpi_gbl_device_notify.handler)) { 443 !acpi_gbl_device_notify.handler)) {
444 status = AE_NOT_EXIST; 444 status = AE_NOT_EXIST;
445 goto unlock; 445 goto unlock_and_exit;
446 } 446 }
447 447
448 /* Make sure all deferred tasks are completed */ 448 /* Make sure all deferred tasks are completed */
@@ -474,7 +474,7 @@ acpi_remove_notify_handler(acpi_handle device,
474 474
475 if (!acpi_ev_is_notify_object(node)) { 475 if (!acpi_ev_is_notify_object(node)) {
476 status = AE_TYPE; 476 status = AE_TYPE;
477 goto unlock; 477 goto unlock_and_exit;
478 } 478 }
479 479
480 /* Check for an existing internal object */ 480 /* Check for an existing internal object */
@@ -482,17 +482,21 @@ acpi_remove_notify_handler(acpi_handle device,
482 obj_desc = acpi_ns_get_attached_object(node); 482 obj_desc = acpi_ns_get_attached_object(node);
483 if (!obj_desc) { 483 if (!obj_desc) {
484 status = AE_NOT_EXIST; 484 status = AE_NOT_EXIST;
485 goto unlock; 485 goto unlock_and_exit;
486 } 486 }
487 487
488 /* Object exists - make sure there's an existing handler */ 488 /* Object exists - make sure there's an existing handler */
489 489
490 if (handler_type & ACPI_SYSTEM_NOTIFY) { 490 if (handler_type & ACPI_SYSTEM_NOTIFY) {
491 notify_obj = obj_desc->common_notify.system_notify; 491 notify_obj = obj_desc->common_notify.system_notify;
492 if ((!notify_obj) || 492 if (!notify_obj) {
493 (notify_obj->notify.handler != handler)) { 493 status = AE_NOT_EXIST;
494 goto unlock_and_exit;
495 }
496
497 if (notify_obj->notify.handler != handler) {
494 status = AE_BAD_PARAMETER; 498 status = AE_BAD_PARAMETER;
495 goto unlock; 499 goto unlock_and_exit;
496 } 500 }
497 /* Make sure all deferred tasks are completed */ 501 /* Make sure all deferred tasks are completed */
498 502
@@ -510,10 +514,14 @@ acpi_remove_notify_handler(acpi_handle device,
510 514
511 if (handler_type & ACPI_DEVICE_NOTIFY) { 515 if (handler_type & ACPI_DEVICE_NOTIFY) {
512 notify_obj = obj_desc->common_notify.device_notify; 516 notify_obj = obj_desc->common_notify.device_notify;
513 if ((!notify_obj) || 517 if (!notify_obj) {
514 (notify_obj->notify.handler != handler)) { 518 status = AE_NOT_EXIST;
519 goto unlock_and_exit;
520 }
521
522 if (notify_obj->notify.handler != handler) {
515 status = AE_BAD_PARAMETER; 523 status = AE_BAD_PARAMETER;
516 goto unlock; 524 goto unlock_and_exit;
517 } 525 }
518 /* Make sure all deferred tasks are completed */ 526 /* Make sure all deferred tasks are completed */
519 527
@@ -530,9 +538,9 @@ acpi_remove_notify_handler(acpi_handle device,
530 } 538 }
531 } 539 }
532 540
533unlock: 541 unlock_and_exit:
534 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); 542 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
535exit: 543 exit:
536 if (ACPI_FAILURE(status)) 544 if (ACPI_FAILURE(status))
537 ACPI_EXCEPTION((AE_INFO, status, "Removing notify handler")); 545 ACPI_EXCEPTION((AE_INFO, status, "Removing notify handler"));
538 return_ACPI_STATUS(status); 546 return_ACPI_STATUS(status);
@@ -586,7 +594,7 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
586 gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number); 594 gpe_event_info = acpi_ev_get_gpe_event_info(gpe_device, gpe_number);
587 if (!gpe_event_info) { 595 if (!gpe_event_info) {
588 status = AE_BAD_PARAMETER; 596 status = AE_BAD_PARAMETER;
589 goto unlock; 597 goto unlock_and_exit;
590 } 598 }
591 599
592 /* Make sure that there isn't a handler there already */ 600 /* Make sure that there isn't a handler there already */
@@ -594,7 +602,7 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
594 if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == 602 if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
595 ACPI_GPE_DISPATCH_HANDLER) { 603 ACPI_GPE_DISPATCH_HANDLER) {
596 status = AE_ALREADY_EXISTS; 604 status = AE_ALREADY_EXISTS;
597 goto unlock; 605 goto unlock_and_exit;
598 } 606 }
599 607
600 /* Allocate and init handler object */ 608 /* Allocate and init handler object */
@@ -602,7 +610,7 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
602 handler = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_handler_info)); 610 handler = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_handler_info));
603 if (!handler) { 611 if (!handler) {
604 status = AE_NO_MEMORY; 612 status = AE_NO_MEMORY;
605 goto unlock; 613 goto unlock_and_exit;
606 } 614 }
607 615
608 handler->address = address; 616 handler->address = address;
@@ -613,7 +621,7 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
613 621
614 status = acpi_ev_disable_gpe(gpe_event_info); 622 status = acpi_ev_disable_gpe(gpe_event_info);
615 if (ACPI_FAILURE(status)) { 623 if (ACPI_FAILURE(status)) {
616 goto unlock; 624 goto unlock_and_exit;
617 } 625 }
618 626
619 /* Install the handler */ 627 /* Install the handler */
@@ -628,9 +636,9 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
628 636
629 acpi_os_release_lock(acpi_gbl_gpe_lock, flags); 637 acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
630 638
631unlock: 639 unlock_and_exit:
632 (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); 640 (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
633exit: 641 exit:
634 if (ACPI_FAILURE(status)) 642 if (ACPI_FAILURE(status))
635 ACPI_EXCEPTION((AE_INFO, status, 643 ACPI_EXCEPTION((AE_INFO, status,
636 "Installing notify handler failed")); 644 "Installing notify handler failed"));
diff --git a/drivers/acpi/events/evxfregn.c b/drivers/acpi/events/evxfregn.c
index e8b86a0baad0..83b12a9afa32 100644
--- a/drivers/acpi/events/evxfregn.c
+++ b/drivers/acpi/events/evxfregn.c
@@ -155,7 +155,11 @@ acpi_remove_address_space_handler(acpi_handle device,
155 /* Convert and validate the device handle */ 155 /* Convert and validate the device handle */
156 156
157 node = acpi_ns_map_handle_to_node(device); 157 node = acpi_ns_map_handle_to_node(device);
158 if (!node) { 158 if (!node ||
159 ((node->type != ACPI_TYPE_DEVICE) &&
160 (node->type != ACPI_TYPE_PROCESSOR) &&
161 (node->type != ACPI_TYPE_THERMAL) &&
162 (node != acpi_gbl_root_node))) {
159 status = AE_BAD_PARAMETER; 163 status = AE_BAD_PARAMETER;
160 goto unlock_and_exit; 164 goto unlock_and_exit;
161 } 165 }
@@ -178,6 +182,13 @@ acpi_remove_address_space_handler(acpi_handle device,
178 182
179 if (handler_obj->address_space.space_id == space_id) { 183 if (handler_obj->address_space.space_id == space_id) {
180 184
185 /* Handler must be the same as the installed handler */
186
187 if (handler_obj->address_space.handler != handler) {
188 status = AE_BAD_PARAMETER;
189 goto unlock_and_exit;
190 }
191
181 /* Matched space_id, first dereference this in the Regions */ 192 /* Matched space_id, first dereference this in the Regions */
182 193
183 ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, 194 ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
diff --git a/drivers/acpi/executer/exconfig.c b/drivers/acpi/executer/exconfig.c
index 83fed079a276..c8341fa5fe01 100644
--- a/drivers/acpi/executer/exconfig.c
+++ b/drivers/acpi/executer/exconfig.c
@@ -502,7 +502,6 @@ acpi_status acpi_ex_unload_table(union acpi_operand_object *ddb_handle)
502 * (Offset contains the table_id) 502 * (Offset contains the table_id)
503 */ 503 */
504 acpi_ns_delete_namespace_by_owner(table_info->owner_id); 504 acpi_ns_delete_namespace_by_owner(table_info->owner_id);
505 acpi_ut_release_owner_id(&table_info->owner_id);
506 505
507 /* Delete the table itself */ 506 /* Delete the table itself */
508 507
diff --git a/drivers/acpi/executer/exconvrt.c b/drivers/acpi/executer/exconvrt.c
index b732e399b1ef..544e81a6a438 100644
--- a/drivers/acpi/executer/exconvrt.c
+++ b/drivers/acpi/executer/exconvrt.c
@@ -170,6 +170,9 @@ acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc,
170 return_ACPI_STATUS(AE_NO_MEMORY); 170 return_ACPI_STATUS(AE_NO_MEMORY);
171 } 171 }
172 172
173 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n",
174 ACPI_FORMAT_UINT64(result)));
175
173 /* Save the Result */ 176 /* Save the Result */
174 177
175 return_desc->integer.value = result; 178 return_desc->integer.value = result;
diff --git a/drivers/acpi/executer/exmutex.c b/drivers/acpi/executer/exmutex.c
index d8ac2877cf05..3a39c2e8e104 100644
--- a/drivers/acpi/executer/exmutex.c
+++ b/drivers/acpi/executer/exmutex.c
@@ -267,9 +267,9 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
267 && (obj_desc->mutex.os_mutex != ACPI_GLOBAL_LOCK)) { 267 && (obj_desc->mutex.os_mutex != ACPI_GLOBAL_LOCK)) {
268 ACPI_ERROR((AE_INFO, 268 ACPI_ERROR((AE_INFO,
269 "Thread %X cannot release Mutex [%4.4s] acquired by thread %X", 269 "Thread %X cannot release Mutex [%4.4s] acquired by thread %X",
270 walk_state->thread->thread_id, 270 (u32) walk_state->thread->thread_id,
271 acpi_ut_get_node_name(obj_desc->mutex.node), 271 acpi_ut_get_node_name(obj_desc->mutex.node),
272 obj_desc->mutex.owner_thread->thread_id)); 272 (u32) obj_desc->mutex.owner_thread->thread_id));
273 return_ACPI_STATUS(AE_AML_NOT_OWNER); 273 return_ACPI_STATUS(AE_AML_NOT_OWNER);
274 } 274 }
275 275
diff --git a/drivers/acpi/executer/exsystem.c b/drivers/acpi/executer/exsystem.c
index 6b5d1e6ce94b..28aef3e69ecc 100644
--- a/drivers/acpi/executer/exsystem.c
+++ b/drivers/acpi/executer/exsystem.c
@@ -60,7 +60,7 @@ ACPI_MODULE_NAME("exsystem")
60 * 60 *
61 * DESCRIPTION: Implements a semaphore wait with a check to see if the 61 * DESCRIPTION: Implements a semaphore wait with a check to see if the
62 * semaphore is available immediately. If it is not, the 62 * semaphore is available immediately. If it is not, the
63 * interpreter is released. 63 * interpreter is released before waiting.
64 * 64 *
65 ******************************************************************************/ 65 ******************************************************************************/
66acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout) 66acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout)
@@ -110,9 +110,9 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout)
110 * 110 *
111 * RETURN: Status 111 * RETURN: Status
112 * 112 *
113 * DESCRIPTION: Implements a semaphore wait with a check to see if the 113 * DESCRIPTION: Implements a mutex wait with a check to see if the
114 * semaphore is available immediately. If it is not, the 114 * mutex is available immediately. If it is not, the
115 * interpreter is released. 115 * interpreter is released before waiting.
116 * 116 *
117 ******************************************************************************/ 117 ******************************************************************************/
118 118
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index daed2460924d..045c89477e59 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -120,7 +120,7 @@ acpi_fan_write_state(struct file *file, const char __user * buffer,
120 return count; 120 return count;
121} 121}
122 122
123static struct file_operations acpi_fan_state_ops = { 123static const struct file_operations acpi_fan_state_ops = {
124 .open = acpi_fan_state_open_fs, 124 .open = acpi_fan_state_open_fs,
125 .read = seq_read, 125 .read = seq_read,
126 .write = acpi_fan_write_state, 126 .write = acpi_fan_write_state,
diff --git a/drivers/acpi/hotkey.c b/drivers/acpi/hotkey.c
index fd81a0f5222f..32c9d88fd196 100644
--- a/drivers/acpi/hotkey.c
+++ b/drivers/acpi/hotkey.c
@@ -184,7 +184,7 @@ static union acpi_hotkey *get_hotkey_by_event(struct
184 *hotkey_list, int event); 184 *hotkey_list, int event);
185 185
186/* event based config */ 186/* event based config */
187static struct file_operations hotkey_config_fops = { 187static const struct file_operations hotkey_config_fops = {
188 .open = hotkey_open_config, 188 .open = hotkey_open_config,
189 .read = seq_read, 189 .read = seq_read,
190 .write = hotkey_write_config, 190 .write = hotkey_write_config,
@@ -193,7 +193,7 @@ static struct file_operations hotkey_config_fops = {
193}; 193};
194 194
195/* polling based config */ 195/* polling based config */
196static struct file_operations hotkey_poll_config_fops = { 196static const struct file_operations hotkey_poll_config_fops = {
197 .open = hotkey_poll_open_config, 197 .open = hotkey_poll_open_config,
198 .read = seq_read, 198 .read = seq_read,
199 .write = hotkey_write_config, 199 .write = hotkey_write_config,
@@ -202,7 +202,7 @@ static struct file_operations hotkey_poll_config_fops = {
202}; 202};
203 203
204/* hotkey driver info */ 204/* hotkey driver info */
205static struct file_operations hotkey_info_fops = { 205static const struct file_operations hotkey_info_fops = {
206 .open = hotkey_info_open_fs, 206 .open = hotkey_info_open_fs,
207 .read = seq_read, 207 .read = seq_read,
208 .llseek = seq_lseek, 208 .llseek = seq_lseek,
@@ -210,7 +210,7 @@ static struct file_operations hotkey_info_fops = {
210}; 210};
211 211
212/* action */ 212/* action */
213static struct file_operations hotkey_action_fops = { 213static const struct file_operations hotkey_action_fops = {
214 .open = hotkey_action_open_fs, 214 .open = hotkey_action_open_fs,
215 .read = seq_read, 215 .read = seq_read,
216 .write = hotkey_execute_aml_method, 216 .write = hotkey_execute_aml_method,
@@ -219,7 +219,7 @@ static struct file_operations hotkey_action_fops = {
219}; 219};
220 220
221/* polling results */ 221/* polling results */
222static struct file_operations hotkey_polling_fops = { 222static const struct file_operations hotkey_polling_fops = {
223 .open = hotkey_polling_open_fs, 223 .open = hotkey_polling_open_fs,
224 .read = seq_read, 224 .read = seq_read,
225 .llseek = seq_lseek, 225 .llseek = seq_lseek,
diff --git a/drivers/acpi/namespace/nsalloc.c b/drivers/acpi/namespace/nsalloc.c
index dc3f0739a46b..55b407aae266 100644
--- a/drivers/acpi/namespace/nsalloc.c
+++ b/drivers/acpi/namespace/nsalloc.c
@@ -386,14 +386,17 @@ void acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_node)
386 * specific ID. Used to delete entire ACPI tables. All 386 * specific ID. Used to delete entire ACPI tables. All
387 * reference counts are updated. 387 * reference counts are updated.
388 * 388 *
389 * MUTEX: Locks namespace during deletion walk.
390 *
389 ******************************************************************************/ 391 ******************************************************************************/
390 392
391void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id) 393void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id)
392{ 394{
393 struct acpi_namespace_node *child_node; 395 struct acpi_namespace_node *child_node;
394 struct acpi_namespace_node *deletion_node; 396 struct acpi_namespace_node *deletion_node;
395 u32 level;
396 struct acpi_namespace_node *parent_node; 397 struct acpi_namespace_node *parent_node;
398 u32 level;
399 acpi_status status;
397 400
398 ACPI_FUNCTION_TRACE_U32(ns_delete_namespace_by_owner, owner_id); 401 ACPI_FUNCTION_TRACE_U32(ns_delete_namespace_by_owner, owner_id);
399 402
@@ -401,6 +404,13 @@ void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id)
401 return_VOID; 404 return_VOID;
402 } 405 }
403 406
407 /* Lock namespace for possible update */
408
409 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
410 if (ACPI_FAILURE(status)) {
411 return_VOID;
412 }
413
404 deletion_node = NULL; 414 deletion_node = NULL;
405 parent_node = acpi_gbl_root_node; 415 parent_node = acpi_gbl_root_node;
406 child_node = NULL; 416 child_node = NULL;
@@ -469,5 +479,6 @@ void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id)
469 } 479 }
470 } 480 }
471 481
482 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
472 return_VOID; 483 return_VOID;
473} 484}
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 5d3447f4582c..fec225d1b6b7 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -80,7 +80,7 @@ struct acpi_power_resource {
80 80
81static struct list_head acpi_power_resource_list; 81static struct list_head acpi_power_resource_list;
82 82
83static struct file_operations acpi_power_fops = { 83static const struct file_operations acpi_power_fops = {
84 .open = acpi_power_open_fs, 84 .open = acpi_power_open_fs,
85 .read = seq_read, 85 .read = seq_read,
86 .llseek = seq_lseek, 86 .llseek = seq_lseek,
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 52674323b14d..b13d64415b7a 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -102,7 +102,7 @@ static struct acpi_driver acpi_processor_driver = {
102#define INSTALL_NOTIFY_HANDLER 1 102#define INSTALL_NOTIFY_HANDLER 1
103#define UNINSTALL_NOTIFY_HANDLER 2 103#define UNINSTALL_NOTIFY_HANDLER 2
104 104
105static struct file_operations acpi_processor_info_fops = { 105static const struct file_operations acpi_processor_info_fops = {
106 .open = acpi_processor_info_open_fs, 106 .open = acpi_processor_info_open_fs,
107 .read = seq_read, 107 .read = seq_read,
108 .llseek = seq_lseek, 108 .llseek = seq_lseek,
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 8e9c26aae8fe..71066066d626 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -1070,7 +1070,7 @@ static int acpi_processor_power_open_fs(struct inode *inode, struct file *file)
1070 PDE(inode)->data); 1070 PDE(inode)->data);
1071} 1071}
1072 1072
1073static struct file_operations acpi_processor_power_fops = { 1073static const struct file_operations acpi_processor_power_fops = {
1074 .open = acpi_processor_power_open_fs, 1074 .open = acpi_processor_power_open_fs,
1075 .read = seq_read, 1075 .read = seq_read,
1076 .llseek = seq_lseek, 1076 .llseek = seq_lseek,
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index cac4fcdcfc8d..5fcb50c7b778 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -663,6 +663,29 @@ static int acpi_bus_find_driver(struct acpi_device *device)
663 Device Enumeration 663 Device Enumeration
664 -------------------------------------------------------------------------- */ 664 -------------------------------------------------------------------------- */
665 665
666acpi_status
667acpi_bus_get_ejd(acpi_handle handle, acpi_handle *ejd)
668{
669 acpi_status status;
670 acpi_handle tmp;
671 struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
672 union acpi_object *obj;
673
674 status = acpi_get_handle(handle, "_EJD", &tmp);
675 if (ACPI_FAILURE(status))
676 return status;
677
678 status = acpi_evaluate_object(handle, "_EJD", NULL, &buffer);
679 if (ACPI_SUCCESS(status)) {
680 obj = buffer.pointer;
681 status = acpi_get_handle(NULL, obj->string.pointer, ejd);
682 kfree(buffer.pointer);
683 }
684 return status;
685}
686EXPORT_SYMBOL_GPL(acpi_bus_get_ejd);
687
688
666static int acpi_bus_get_flags(struct acpi_device *device) 689static int acpi_bus_get_flags(struct acpi_device *device)
667{ 690{
668 acpi_status status = AE_OK; 691 acpi_status status = AE_OK;
diff --git a/drivers/acpi/sleep/proc.c b/drivers/acpi/sleep/proc.c
index 4696a85a98b9..34962578039d 100644
--- a/drivers/acpi/sleep/proc.c
+++ b/drivers/acpi/sleep/proc.c
@@ -434,7 +434,7 @@ acpi_system_wakeup_device_open_fs(struct inode *inode, struct file *file)
434 PDE(inode)->data); 434 PDE(inode)->data);
435} 435}
436 436
437static struct file_operations acpi_system_wakeup_device_fops = { 437static const struct file_operations acpi_system_wakeup_device_fops = {
438 .open = acpi_system_wakeup_device_open_fs, 438 .open = acpi_system_wakeup_device_open_fs,
439 .read = seq_read, 439 .read = seq_read,
440 .write = acpi_system_write_wakeup_device, 440 .write = acpi_system_write_wakeup_device,
@@ -443,7 +443,7 @@ static struct file_operations acpi_system_wakeup_device_fops = {
443}; 443};
444 444
445#ifdef CONFIG_ACPI_SLEEP_PROC_SLEEP 445#ifdef CONFIG_ACPI_SLEEP_PROC_SLEEP
446static struct file_operations acpi_system_sleep_fops = { 446static const struct file_operations acpi_system_sleep_fops = {
447 .open = acpi_system_sleep_open_fs, 447 .open = acpi_system_sleep_open_fs,
448 .read = seq_read, 448 .read = seq_read,
449 .write = acpi_system_write_sleep, 449 .write = acpi_system_write_sleep,
@@ -452,7 +452,7 @@ static struct file_operations acpi_system_sleep_fops = {
452}; 452};
453#endif /* CONFIG_ACPI_SLEEP_PROC_SLEEP */ 453#endif /* CONFIG_ACPI_SLEEP_PROC_SLEEP */
454 454
455static struct file_operations acpi_system_alarm_fops = { 455static const struct file_operations acpi_system_alarm_fops = {
456 .open = acpi_system_alarm_open_fs, 456 .open = acpi_system_alarm_open_fs,
457 .read = seq_read, 457 .read = seq_read,
458 .write = acpi_system_write_alarm, 458 .write = acpi_system_write_alarm,
diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c
index c3bb7faad75e..d86dcb3c2366 100644
--- a/drivers/acpi/system.c
+++ b/drivers/acpi/system.c
@@ -57,7 +57,7 @@ static int acpi_system_info_open_fs(struct inode *inode, struct file *file)
57 return single_open(file, acpi_system_read_info, PDE(inode)->data); 57 return single_open(file, acpi_system_read_info, PDE(inode)->data);
58} 58}
59 59
60static struct file_operations acpi_system_info_ops = { 60static const struct file_operations acpi_system_info_ops = {
61 .open = acpi_system_info_open_fs, 61 .open = acpi_system_info_open_fs,
62 .read = seq_read, 62 .read = seq_read,
63 .llseek = seq_lseek, 63 .llseek = seq_lseek,
@@ -67,7 +67,7 @@ static struct file_operations acpi_system_info_ops = {
67static ssize_t acpi_system_read_dsdt(struct file *, char __user *, size_t, 67static ssize_t acpi_system_read_dsdt(struct file *, char __user *, size_t,
68 loff_t *); 68 loff_t *);
69 69
70static struct file_operations acpi_system_dsdt_ops = { 70static const struct file_operations acpi_system_dsdt_ops = {
71 .read = acpi_system_read_dsdt, 71 .read = acpi_system_read_dsdt,
72}; 72};
73 73
@@ -94,7 +94,7 @@ acpi_system_read_dsdt(struct file *file,
94static ssize_t acpi_system_read_fadt(struct file *, char __user *, size_t, 94static ssize_t acpi_system_read_fadt(struct file *, char __user *, size_t,
95 loff_t *); 95 loff_t *);
96 96
97static struct file_operations acpi_system_fadt_ops = { 97static const struct file_operations acpi_system_fadt_ops = {
98 .read = acpi_system_read_fadt, 98 .read = acpi_system_read_fadt,
99}; 99};
100 100
diff --git a/drivers/acpi/tables/tbget.c b/drivers/acpi/tables/tbget.c
index 99eacceff563..7856db759af0 100644
--- a/drivers/acpi/tables/tbget.c
+++ b/drivers/acpi/tables/tbget.c
@@ -320,6 +320,16 @@ acpi_tb_get_this_table(struct acpi_pointer *address,
320 320
321 ACPI_FUNCTION_TRACE(tb_get_this_table); 321 ACPI_FUNCTION_TRACE(tb_get_this_table);
322 322
323 /* Validate minimum length */
324
325 if (header->length < sizeof(struct acpi_table_header)) {
326 ACPI_ERROR((AE_INFO,
327 "Table length (%X) is smaller than minimum (%X)",
328 header->length, sizeof(struct acpi_table_header)));
329
330 return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
331 }
332
323 /* 333 /*
324 * Flags contains the current processor mode (Virtual or Physical 334 * Flags contains the current processor mode (Virtual or Physical
325 * addressing) The pointer_type is either Logical or Physical 335 * addressing) The pointer_type is either Logical or Physical
@@ -356,7 +366,7 @@ acpi_tb_get_this_table(struct acpi_pointer *address,
356 */ 366 */
357 status = acpi_os_map_memory(address->pointer.physical, 367 status = acpi_os_map_memory(address->pointer.physical,
358 (acpi_size) header->length, 368 (acpi_size) header->length,
359 (void *)&full_table); 369 ACPI_CAST_PTR(void, &full_table));
360 if (ACPI_FAILURE(status)) { 370 if (ACPI_FAILURE(status)) {
361 ACPI_ERROR((AE_INFO, 371 ACPI_ERROR((AE_INFO,
362 "Could not map memory for table [%4.4s] at %8.8X%8.8X for length %X", 372 "Could not map memory for table [%4.4s] at %8.8X%8.8X for length %X",
diff --git a/drivers/acpi/tables/tbinstal.c b/drivers/acpi/tables/tbinstal.c
index 7ca2df75bb11..1668a232fb67 100644
--- a/drivers/acpi/tables/tbinstal.c
+++ b/drivers/acpi/tables/tbinstal.c
@@ -256,7 +256,7 @@ acpi_tb_init_table_descriptor(acpi_table_type table_type,
256 256
257 status = acpi_ut_allocate_owner_id(&table_desc->owner_id); 257 status = acpi_ut_allocate_owner_id(&table_desc->owner_id);
258 if (ACPI_FAILURE(status)) { 258 if (ACPI_FAILURE(status)) {
259 return_ACPI_STATUS(status); 259 goto error_exit1;
260 } 260 }
261 261
262 /* Install the table into the global data structure */ 262 /* Install the table into the global data structure */
@@ -274,8 +274,8 @@ acpi_tb_init_table_descriptor(acpi_table_type table_type,
274 * at this location, so return an error. 274 * at this location, so return an error.
275 */ 275 */
276 if (list_head->next) { 276 if (list_head->next) {
277 ACPI_FREE(table_desc); 277 status = AE_ALREADY_EXISTS;
278 return_ACPI_STATUS(AE_ALREADY_EXISTS); 278 goto error_exit2;
279 } 279 }
280 280
281 table_desc->next = list_head->next; 281 table_desc->next = list_head->next;
@@ -335,6 +335,17 @@ acpi_tb_init_table_descriptor(acpi_table_type table_type,
335 table_info->owner_id = table_desc->owner_id; 335 table_info->owner_id = table_desc->owner_id;
336 table_info->installed_desc = table_desc; 336 table_info->installed_desc = table_desc;
337 return_ACPI_STATUS(AE_OK); 337 return_ACPI_STATUS(AE_OK);
338
339 /* Error exit with cleanup */
340
341 error_exit2:
342
343 acpi_ut_release_owner_id(&table_desc->owner_id);
344
345 error_exit1:
346
347 ACPI_FREE(table_desc);
348 return_ACPI_STATUS(status);
338} 349}
339 350
340/******************************************************************************* 351/*******************************************************************************
@@ -525,6 +536,10 @@ struct acpi_table_desc *acpi_tb_uninstall_table(struct acpi_table_desc
525 536
526 acpi_tb_delete_single_table(table_desc); 537 acpi_tb_delete_single_table(table_desc);
527 538
539 /* Free the owner ID associated with this table */
540
541 acpi_ut_release_owner_id(&table_desc->owner_id);
542
528 /* Free the table descriptor */ 543 /* Free the table descriptor */
529 544
530 next_desc = table_desc->next; 545 next_desc = table_desc->next;
diff --git a/drivers/acpi/tables/tbrsdt.c b/drivers/acpi/tables/tbrsdt.c
index abcb08c2592a..0ad3dbb9ebca 100644
--- a/drivers/acpi/tables/tbrsdt.c
+++ b/drivers/acpi/tables/tbrsdt.c
@@ -183,6 +183,17 @@ acpi_status acpi_tb_validate_rsdt(struct acpi_table_header *table_ptr)
183 183
184 ACPI_FUNCTION_ENTRY(); 184 ACPI_FUNCTION_ENTRY();
185 185
186 /* Validate minimum length */
187
188 if (table_ptr->length < sizeof(struct acpi_table_header)) {
189 ACPI_ERROR((AE_INFO,
190 "RSDT/XSDT length (%X) is smaller than minimum (%X)",
191 table_ptr->length,
192 sizeof(struct acpi_table_header)));
193
194 return (AE_INVALID_TABLE_LENGTH);
195 }
196
186 /* Search for appropriate signature, RSDT or XSDT */ 197 /* Search for appropriate signature, RSDT or XSDT */
187 198
188 if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) { 199 if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) {
@@ -210,7 +221,7 @@ acpi_status acpi_tb_validate_rsdt(struct acpi_table_header *table_ptr)
210 ACPI_ERROR((AE_INFO, "Looking for XSDT")); 221 ACPI_ERROR((AE_INFO, "Looking for XSDT"));
211 } 222 }
212 223
213 ACPI_DUMP_BUFFER((char *)table_ptr, 48); 224 ACPI_DUMP_BUFFER(ACPI_CAST_PTR(char, table_ptr), 48);
214 return (AE_BAD_SIGNATURE); 225 return (AE_BAD_SIGNATURE);
215 } 226 }
216 227
@@ -258,7 +269,7 @@ acpi_status acpi_tb_get_table_rsdt(void)
258 269
259 status = acpi_tb_validate_rsdt(table_info.pointer); 270 status = acpi_tb_validate_rsdt(table_info.pointer);
260 if (ACPI_FAILURE(status)) { 271 if (ACPI_FAILURE(status)) {
261 return_ACPI_STATUS(status); 272 goto error_cleanup;
262 } 273 }
263 274
264 /* Get the number of tables defined in the RSDT or XSDT */ 275 /* Get the number of tables defined in the RSDT or XSDT */
@@ -270,14 +281,14 @@ acpi_status acpi_tb_get_table_rsdt(void)
270 281
271 status = acpi_tb_convert_to_xsdt(&table_info); 282 status = acpi_tb_convert_to_xsdt(&table_info);
272 if (ACPI_FAILURE(status)) { 283 if (ACPI_FAILURE(status)) {
273 return_ACPI_STATUS(status); 284 goto error_cleanup;
274 } 285 }
275 286
276 /* Save the table pointers and allocation info */ 287 /* Save the table pointers and allocation info */
277 288
278 status = acpi_tb_init_table_descriptor(ACPI_TABLE_ID_XSDT, &table_info); 289 status = acpi_tb_init_table_descriptor(ACPI_TABLE_ID_XSDT, &table_info);
279 if (ACPI_FAILURE(status)) { 290 if (ACPI_FAILURE(status)) {
280 return_ACPI_STATUS(status); 291 goto error_cleanup;
281 } 292 }
282 293
283 acpi_gbl_XSDT = 294 acpi_gbl_XSDT =
@@ -285,4 +296,12 @@ acpi_status acpi_tb_get_table_rsdt(void)
285 296
286 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "XSDT located at %p\n", acpi_gbl_XSDT)); 297 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "XSDT located at %p\n", acpi_gbl_XSDT));
287 return_ACPI_STATUS(status); 298 return_ACPI_STATUS(status);
299
300 error_cleanup:
301
302 /* Free table allocated by acpi_tb_get_table */
303
304 acpi_tb_delete_single_table(&table_info);
305
306 return_ACPI_STATUS(status);
288} 307}
diff --git a/drivers/acpi/tables/tbxface.c b/drivers/acpi/tables/tbxface.c
index 4e91f2984815..7767987be15a 100644
--- a/drivers/acpi/tables/tbxface.c
+++ b/drivers/acpi/tables/tbxface.c
@@ -134,8 +134,8 @@ ACPI_EXPORT_SYMBOL(acpi_load_tables)
134 * RETURN: Status 134 * RETURN: Status
135 * 135 *
136 * DESCRIPTION: This function is called to load a table from the caller's 136 * DESCRIPTION: This function is called to load a table from the caller's
137 * buffer. The buffer must contain an entire ACPI Table including 137 * buffer. The buffer must contain an entire ACPI Table including
138 * a valid header. The header fields will be verified, and if it 138 * a valid header. The header fields will be verified, and if it
139 * is determined that the table is invalid, the call will fail. 139 * is determined that the table is invalid, the call will fail.
140 * 140 *
141 ******************************************************************************/ 141 ******************************************************************************/
@@ -245,15 +245,18 @@ acpi_status acpi_unload_table(acpi_table_type table_type)
245 /* Find all tables of the requested type */ 245 /* Find all tables of the requested type */
246 246
247 table_desc = acpi_gbl_table_lists[table_type].next; 247 table_desc = acpi_gbl_table_lists[table_type].next;
248 if (!table_desc) {
249 return_ACPI_STATUS(AE_NOT_EXIST);
250 }
251
248 while (table_desc) { 252 while (table_desc) {
249 /* 253 /*
250 * Delete all namespace entries owned by this table. Note that these 254 * Delete all namespace objects owned by this table. Note that these
251 * entries can appear anywhere in the namespace by virtue of the AML 255 * objects can appear anywhere in the namespace by virtue of the AML
252 * "Scope" operator. Thus, we need to track ownership by an ID, not 256 * "Scope" operator. Thus, we need to track ownership by an ID, not
253 * simply a position within the hierarchy 257 * simply a position within the hierarchy
254 */ 258 */
255 acpi_ns_delete_namespace_by_owner(table_desc->owner_id); 259 acpi_ns_delete_namespace_by_owner(table_desc->owner_id);
256 acpi_ut_release_owner_id(&table_desc->owner_id);
257 table_desc = table_desc->next; 260 table_desc = table_desc->next;
258 } 261 }
259 262
@@ -275,12 +278,12 @@ ACPI_EXPORT_SYMBOL(acpi_unload_table)
275 * see acpi_gbl_acpi_table_flag 278 * see acpi_gbl_acpi_table_flag
276 * out_table_header - pointer to the struct acpi_table_header if successful 279 * out_table_header - pointer to the struct acpi_table_header if successful
277 * 280 *
278 * DESCRIPTION: This function is called to get an ACPI table header. The caller 281 * DESCRIPTION: This function is called to get an ACPI table header. The caller
279 * supplies an pointer to a data area sufficient to contain an ACPI 282 * supplies an pointer to a data area sufficient to contain an ACPI
280 * struct acpi_table_header structure. 283 * struct acpi_table_header structure.
281 * 284 *
282 * The header contains a length field that can be used to determine 285 * The header contains a length field that can be used to determine
283 * the size of the buffer needed to contain the entire table. This 286 * the size of the buffer needed to contain the entire table. This
284 * function is not valid for the RSD PTR table since it does not 287 * function is not valid for the RSD PTR table since it does not
285 * have a standard header and is fixed length. 288 * have a standard header and is fixed length.
286 * 289 *
@@ -322,7 +325,8 @@ acpi_get_table_header(acpi_table_type table_type,
322 325
323 /* Copy the header to the caller's buffer */ 326 /* Copy the header to the caller's buffer */
324 327
325 ACPI_MEMCPY((void *)out_table_header, (void *)tbl_ptr, 328 ACPI_MEMCPY(ACPI_CAST_PTR(void, out_table_header),
329 ACPI_CAST_PTR(void, tbl_ptr),
326 sizeof(struct acpi_table_header)); 330 sizeof(struct acpi_table_header));
327 331
328 return_ACPI_STATUS(status); 332 return_ACPI_STATUS(status);
@@ -344,10 +348,10 @@ ACPI_EXPORT_SYMBOL(acpi_get_table_header)
344 * 348 *
345 * RETURN: Status 349 * RETURN: Status
346 * 350 *
347 * DESCRIPTION: This function is called to get an ACPI table. The caller 351 * DESCRIPTION: This function is called to get an ACPI table. The caller
348 * supplies an out_buffer large enough to contain the entire ACPI 352 * supplies an out_buffer large enough to contain the entire ACPI
349 * table. The caller should call the acpi_get_table_header function 353 * table. The caller should call the acpi_get_table_header function
350 * first to determine the buffer size needed. Upon completion 354 * first to determine the buffer size needed. Upon completion
351 * the out_buffer->Length field will indicate the number of bytes 355 * the out_buffer->Length field will indicate the number of bytes
352 * copied into the out_buffer->buf_ptr buffer. This table will be 356 * copied into the out_buffer->buf_ptr buffer. This table will be
353 * a complete table including the header. 357 * a complete table including the header.
@@ -417,7 +421,9 @@ acpi_get_table(acpi_table_type table_type,
417 421
418 /* Copy the table to the buffer */ 422 /* Copy the table to the buffer */
419 423
420 ACPI_MEMCPY((void *)ret_buffer->pointer, (void *)tbl_ptr, table_length); 424 ACPI_MEMCPY(ACPI_CAST_PTR(void, ret_buffer->pointer),
425 ACPI_CAST_PTR(void, tbl_ptr), table_length);
426
421 return_ACPI_STATUS(AE_OK); 427 return_ACPI_STATUS(AE_OK);
422} 428}
423 429
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 503c0b99db12..480a31796886 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -176,21 +176,21 @@ struct acpi_thermal {
176 struct timer_list timer; 176 struct timer_list timer;
177}; 177};
178 178
179static struct file_operations acpi_thermal_state_fops = { 179static const struct file_operations acpi_thermal_state_fops = {
180 .open = acpi_thermal_state_open_fs, 180 .open = acpi_thermal_state_open_fs,
181 .read = seq_read, 181 .read = seq_read,
182 .llseek = seq_lseek, 182 .llseek = seq_lseek,
183 .release = single_release, 183 .release = single_release,
184}; 184};
185 185
186static struct file_operations acpi_thermal_temp_fops = { 186static const struct file_operations acpi_thermal_temp_fops = {
187 .open = acpi_thermal_temp_open_fs, 187 .open = acpi_thermal_temp_open_fs,
188 .read = seq_read, 188 .read = seq_read,
189 .llseek = seq_lseek, 189 .llseek = seq_lseek,
190 .release = single_release, 190 .release = single_release,
191}; 191};
192 192
193static struct file_operations acpi_thermal_trip_fops = { 193static const struct file_operations acpi_thermal_trip_fops = {
194 .open = acpi_thermal_trip_open_fs, 194 .open = acpi_thermal_trip_open_fs,
195 .read = seq_read, 195 .read = seq_read,
196 .write = acpi_thermal_write_trip_points, 196 .write = acpi_thermal_write_trip_points,
@@ -198,7 +198,7 @@ static struct file_operations acpi_thermal_trip_fops = {
198 .release = single_release, 198 .release = single_release,
199}; 199};
200 200
201static struct file_operations acpi_thermal_cooling_fops = { 201static const struct file_operations acpi_thermal_cooling_fops = {
202 .open = acpi_thermal_cooling_open_fs, 202 .open = acpi_thermal_cooling_open_fs,
203 .read = seq_read, 203 .read = seq_read,
204 .write = acpi_thermal_write_cooling_mode, 204 .write = acpi_thermal_write_cooling_mode,
@@ -206,7 +206,7 @@ static struct file_operations acpi_thermal_cooling_fops = {
206 .release = single_release, 206 .release = single_release,
207}; 207};
208 208
209static struct file_operations acpi_thermal_polling_fops = { 209static const struct file_operations acpi_thermal_polling_fops = {
210 .open = acpi_thermal_polling_open_fs, 210 .open = acpi_thermal_polling_open_fs,
211 .read = seq_read, 211 .read = seq_read,
212 .write = acpi_thermal_write_polling, 212 .write = acpi_thermal_write_polling,
diff --git a/drivers/acpi/utilities/utdebug.c b/drivers/acpi/utilities/utdebug.c
index 5ec1cfcc611d..bb1eaf9aa653 100644
--- a/drivers/acpi/utilities/utdebug.c
+++ b/drivers/acpi/utilities/utdebug.c
@@ -47,7 +47,7 @@
47ACPI_MODULE_NAME("utdebug") 47ACPI_MODULE_NAME("utdebug")
48 48
49#ifdef ACPI_DEBUG_OUTPUT 49#ifdef ACPI_DEBUG_OUTPUT
50static u32 acpi_gbl_prev_thread_id = 0xFFFFFFFF; 50static acpi_thread_id acpi_gbl_prev_thread_id;
51static char *acpi_gbl_fn_entry_str = "----Entry"; 51static char *acpi_gbl_fn_entry_str = "----Entry";
52static char *acpi_gbl_fn_exit_str = "----Exit-"; 52static char *acpi_gbl_fn_exit_str = "----Exit-";
53 53
@@ -181,7 +181,7 @@ acpi_ut_debug_print(u32 requested_debug_level,
181 if (ACPI_LV_THREADS & acpi_dbg_level) { 181 if (ACPI_LV_THREADS & acpi_dbg_level) {
182 acpi_os_printf 182 acpi_os_printf
183 ("\n**** Context Switch from TID %X to TID %X ****\n\n", 183 ("\n**** Context Switch from TID %X to TID %X ****\n\n",
184 acpi_gbl_prev_thread_id, thread_id); 184 (u32) acpi_gbl_prev_thread_id, (u32) thread_id);
185 } 185 }
186 186
187 acpi_gbl_prev_thread_id = thread_id; 187 acpi_gbl_prev_thread_id = thread_id;
diff --git a/drivers/acpi/utilities/utdelete.c b/drivers/acpi/utilities/utdelete.c
index 38ebe1c54330..9d3f1149ba21 100644
--- a/drivers/acpi/utilities/utdelete.c
+++ b/drivers/acpi/utilities/utdelete.c
@@ -447,11 +447,16 @@ acpi_ut_update_object_reference(union acpi_operand_object *object, u16 action)
447 */ 447 */
448 switch (ACPI_GET_OBJECT_TYPE(object)) { 448 switch (ACPI_GET_OBJECT_TYPE(object)) {
449 case ACPI_TYPE_DEVICE: 449 case ACPI_TYPE_DEVICE:
450 case ACPI_TYPE_PROCESSOR:
451 case ACPI_TYPE_POWER:
452 case ACPI_TYPE_THERMAL:
450 453
451 acpi_ut_update_ref_count(object->device.system_notify, 454 /* Update the notify objects for these types (if present) */
452 action); 455
453 acpi_ut_update_ref_count(object->device.device_notify, 456 acpi_ut_update_ref_count(object->common_notify.
454 action); 457 system_notify, action);
458 acpi_ut_update_ref_count(object->common_notify.
459 device_notify, action);
455 break; 460 break;
456 461
457 case ACPI_TYPE_PACKAGE: 462 case ACPI_TYPE_PACKAGE:
diff --git a/drivers/acpi/utilities/utmisc.c b/drivers/acpi/utilities/utmisc.c
index 33268310c738..6d8a8211be90 100644
--- a/drivers/acpi/utilities/utmisc.c
+++ b/drivers/acpi/utilities/utmisc.c
@@ -65,7 +65,7 @@ ACPI_MODULE_NAME("utmisc")
65u8 acpi_ut_is_aml_table(struct acpi_table_header *table) 65u8 acpi_ut_is_aml_table(struct acpi_table_header *table)
66{ 66{
67 67
68 /* Ignore tables that contain AML */ 68 /* These are the only tables that contain executable AML */
69 69
70 if (ACPI_COMPARE_NAME(table->signature, DSDT_SIG) || 70 if (ACPI_COMPARE_NAME(table->signature, DSDT_SIG) ||
71 ACPI_COMPARE_NAME(table->signature, PSDT_SIG) || 71 ACPI_COMPARE_NAME(table->signature, PSDT_SIG) ||
@@ -419,10 +419,15 @@ void acpi_ut_set_integer_width(u8 revision)
419{ 419{
420 420
421 if (revision <= 1) { 421 if (revision <= 1) {
422
423 /* 32-bit case */
424
422 acpi_gbl_integer_bit_width = 32; 425 acpi_gbl_integer_bit_width = 32;
423 acpi_gbl_integer_nybble_width = 8; 426 acpi_gbl_integer_nybble_width = 8;
424 acpi_gbl_integer_byte_width = 4; 427 acpi_gbl_integer_byte_width = 4;
425 } else { 428 } else {
429 /* 64-bit case (ACPI 2.0+) */
430
426 acpi_gbl_integer_bit_width = 64; 431 acpi_gbl_integer_bit_width = 64;
427 acpi_gbl_integer_nybble_width = 16; 432 acpi_gbl_integer_nybble_width = 16;
428 acpi_gbl_integer_byte_width = 8; 433 acpi_gbl_integer_byte_width = 8;
@@ -502,6 +507,7 @@ acpi_ut_display_init_pathname(u8 type,
502 * FUNCTION: acpi_ut_valid_acpi_char 507 * FUNCTION: acpi_ut_valid_acpi_char
503 * 508 *
504 * PARAMETERS: Char - The character to be examined 509 * PARAMETERS: Char - The character to be examined
510 * Position - Byte position (0-3)
505 * 511 *
506 * RETURN: TRUE if the character is valid, FALSE otherwise 512 * RETURN: TRUE if the character is valid, FALSE otherwise
507 * 513 *
@@ -609,7 +615,9 @@ acpi_name acpi_ut_repair_name(acpi_name name)
609 * 615 *
610 * RETURN: Status and Converted value 616 * RETURN: Status and Converted value
611 * 617 *
612 * DESCRIPTION: Convert a string into an unsigned value. 618 * DESCRIPTION: Convert a string into an unsigned value. Performs either a
619 * 32-bit or 64-bit conversion, depending on the current mode
620 * of the interpreter.
613 * NOTE: Does not support Octal strings, not needed. 621 * NOTE: Does not support Octal strings, not needed.
614 * 622 *
615 ******************************************************************************/ 623 ******************************************************************************/
@@ -627,7 +635,7 @@ acpi_ut_strtoul64(char *string, u32 base, acpi_integer * ret_integer)
627 u8 sign_of0x = 0; 635 u8 sign_of0x = 0;
628 u8 term = 0; 636 u8 term = 0;
629 637
630 ACPI_FUNCTION_TRACE(ut_stroul64); 638 ACPI_FUNCTION_TRACE_STR(ut_stroul64, string);
631 639
632 switch (base) { 640 switch (base) {
633 case ACPI_ANY_BASE: 641 case ACPI_ANY_BASE:
@@ -675,11 +683,13 @@ acpi_ut_strtoul64(char *string, u32 base, acpi_integer * ret_integer)
675 } 683 }
676 } 684 }
677 685
686 /*
687 * Perform a 32-bit or 64-bit conversion, depending upon the current
688 * execution mode of the interpreter
689 */
678 dividend = (mode32) ? ACPI_UINT32_MAX : ACPI_UINT64_MAX; 690 dividend = (mode32) ? ACPI_UINT32_MAX : ACPI_UINT64_MAX;
679 691
680 /* At least one character in the string here */ 692 /* Main loop: convert the string to a 32- or 64-bit integer */
681
682 /* Main loop: convert the string to a 64-bit integer */
683 693
684 while (*string) { 694 while (*string) {
685 if (ACPI_IS_DIGIT(*string)) { 695 if (ACPI_IS_DIGIT(*string)) {
@@ -754,6 +764,9 @@ acpi_ut_strtoul64(char *string, u32 base, acpi_integer * ret_integer)
754 764
755 all_done: 765 all_done:
756 766
767 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n",
768 ACPI_FORMAT_UINT64(return_value)));
769
757 *ret_integer = return_value; 770 *ret_integer = return_value;
758 return_ACPI_STATUS(AE_OK); 771 return_ACPI_STATUS(AE_OK);
759 772
diff --git a/drivers/acpi/utilities/utmutex.c b/drivers/acpi/utilities/utmutex.c
index dfc8f30ca892..c39062a047cd 100644
--- a/drivers/acpi/utilities/utmutex.c
+++ b/drivers/acpi/utilities/utmutex.c
@@ -244,14 +244,14 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
244 244
245 ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, 245 ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
246 "Thread %X attempting to acquire Mutex [%s]\n", 246 "Thread %X attempting to acquire Mutex [%s]\n",
247 this_thread_id, acpi_ut_get_mutex_name(mutex_id))); 247 (u32) this_thread_id, acpi_ut_get_mutex_name(mutex_id)));
248 248
249 status = acpi_os_acquire_mutex(acpi_gbl_mutex_info[mutex_id].mutex, 249 status = acpi_os_acquire_mutex(acpi_gbl_mutex_info[mutex_id].mutex,
250 ACPI_WAIT_FOREVER); 250 ACPI_WAIT_FOREVER);
251 if (ACPI_SUCCESS(status)) { 251 if (ACPI_SUCCESS(status)) {
252 ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, 252 ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
253 "Thread %X acquired Mutex [%s]\n", 253 "Thread %X acquired Mutex [%s]\n",
254 this_thread_id, 254 (u32) this_thread_id,
255 acpi_ut_get_mutex_name(mutex_id))); 255 acpi_ut_get_mutex_name(mutex_id)));
256 256
257 acpi_gbl_mutex_info[mutex_id].use_count++; 257 acpi_gbl_mutex_info[mutex_id].use_count++;
@@ -259,7 +259,7 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
259 } else { 259 } else {
260 ACPI_EXCEPTION((AE_INFO, status, 260 ACPI_EXCEPTION((AE_INFO, status,
261 "Thread %X could not acquire Mutex [%X]", 261 "Thread %X could not acquire Mutex [%X]",
262 this_thread_id, mutex_id)); 262 (u32) this_thread_id, mutex_id));
263 } 263 }
264 264
265 return (status); 265 return (status);
@@ -285,7 +285,7 @@ acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id)
285 285
286 this_thread_id = acpi_os_get_thread_id(); 286 this_thread_id = acpi_os_get_thread_id();
287 ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, 287 ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
288 "Thread %X releasing Mutex [%s]\n", this_thread_id, 288 "Thread %X releasing Mutex [%s]\n", (u32) this_thread_id,
289 acpi_ut_get_mutex_name(mutex_id))); 289 acpi_ut_get_mutex_name(mutex_id)));
290 290
291 if (mutex_id > ACPI_MAX_MUTEX) { 291 if (mutex_id > ACPI_MAX_MUTEX) {
diff --git a/drivers/acpi/utilities/utstate.c b/drivers/acpi/utilities/utstate.c
index 0f5c5bb5deff..eaa13d05c859 100644
--- a/drivers/acpi/utilities/utstate.c
+++ b/drivers/acpi/utilities/utstate.c
@@ -199,6 +199,13 @@ struct acpi_thread_state *acpi_ut_create_thread_state(void)
199 state->common.descriptor_type = ACPI_DESC_TYPE_STATE_THREAD; 199 state->common.descriptor_type = ACPI_DESC_TYPE_STATE_THREAD;
200 state->thread.thread_id = acpi_os_get_thread_id(); 200 state->thread.thread_id = acpi_os_get_thread_id();
201 201
202 /* Check for invalid thread ID - zero is very bad, it will break things */
203
204 if (!state->thread.thread_id) {
205 ACPI_ERROR((AE_INFO, "Invalid zero ID from AcpiOsGetThreadId"));
206 state->thread.thread_id = (acpi_thread_id) 1;
207 }
208
202 return_PTR((struct acpi_thread_state *)state); 209 return_PTR((struct acpi_thread_state *)state);
203} 210}
204 211