38 files changed, 426 insertions, 126 deletions

diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX
index 042073f656e5..fc8e7c7d182f 100644
--- a/Documentation/00-INDEX
+++ b/Documentation/00-INDEX
@@ -225,8 +225,6 @@ kprobes.txt
         - documents the kernel probes debugging feature.
 kref.txt
         - docs on adding reference counters (krefs) to kernel objects.
-laptop-mode.txt
-        - how to conserve battery power using laptop-mode.
 laptops/
         - directory with laptop related info and laptop driver documentation.
 ldm.txt
@@ -301,12 +299,8 @@ pcmcia/
         - info on the Linux PCMCIA driver.
 pi-futex.txt
         - documentation on lightweight PI-futexes.
-pm.txt
-        - info on Linux power management support.
 pnp.txt
         - Linux Plug and Play documentation.
-power_supply_class.txt
-        - Tells userspace about battery, UPS, AC or DC power supply properties
 power/
         - directory with info on Linux PCI power management.
 powerpc/
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index 5681e2fa1496..518ebe609e2b 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -1506,13 +1506,13 @@ laptop_mode
 -----------
 
 laptop_mode is a knob that controls "laptop mode". All the things that are
-controlled by this knob are discussed in Documentation/laptop-mode.txt.
+controlled by this knob are discussed in Documentation/laptops/laptop-mode.txt.
 
 block_dump
 ----------
 
 block_dump enables block I/O debugging when set to a nonzero value. More
-information on block I/O debugging is in Documentation/laptop-mode.txt.
+information on block I/O debugging is in Documentation/laptops/laptop-mode.txt.
 
 swap_token_timeout
 ------------------
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 533e67febf81..49318b99e581 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -138,7 +138,7 @@ and is between 256 and 4096 characters. It is defined in the file
                         strict -- Be less tolerant of platforms that are not
                                 strictly ACPI specification compliant.
 
-                        See also Documentation/pm.txt, pci=noacpi
+                        See also Documentation/power/pm.txt, pci=noacpi
 
         acpi_apic_instance=     [ACPI, IOAPIC]
                         Format: <int>
diff --git a/Documentation/laptops/00-INDEX b/Documentation/laptops/00-INDEX
index 729c2c062e10..ee5692b26dd4 100644
--- a/Documentation/laptops/00-INDEX
+++ b/Documentation/laptops/00-INDEX
@@ -2,6 +2,8 @@
         - This file
 acer-wmi.txt
         - information on the Acer Laptop WMI Extras driver.
+laptop-mode.txt
+        - how to conserve battery power using laptop-mode.
 sony-laptop.txt
         - Sony Notebook Control Driver (SNC) Readme.
 sonypi.txt
diff --git a/Documentation/laptops/acer-wmi.txt b/Documentation/laptops/acer-wmi.txt
index b06696329cff..23df051dbf69 100644
--- a/Documentation/laptops/acer-wmi.txt
+++ b/Documentation/laptops/acer-wmi.txt
@@ -48,7 +48,7 @@ DSDT.
 
 To send me the DSDT, as root/sudo:
 
-cat /sys/firmware/acpi/DSDT > dsdt
+cat /sys/firmware/acpi/tables/DSDT > dsdt
 
 And send me the resulting 'dsdt' file.
 
@@ -169,7 +169,7 @@ can be added to acer-wmi.
 
 The LED is exposed through the LED subsystem, and can be found in:
 
-/sys/devices/platform/acer-wmi/leds/acer-mail:green/
+/sys/devices/platform/acer-wmi/leds/acer-wmi::mail/
 
 The mail LED is autodetected, so if you don't have one, the LED device won't
 be registered.
diff --git a/Documentation/laptop-mode.txt b/Documentation/laptops/laptop-mode.txt
index eeedee11c8c2..eeedee11c8c2 100644
--- a/Documentation/laptop-mode.txt
+++ b/Documentation/laptops/laptop-mode.txt
diff --git a/Documentation/power/00-INDEX b/Documentation/power/00-INDEX
index 8db4e41a052d..a55d7f1c836d 100644
--- a/Documentation/power/00-INDEX
+++ b/Documentation/power/00-INDEX
@@ -14,6 +14,12 @@ notifiers.txt
         - Registering suspend notifiers in device drivers
 pci.txt
         - How the PCI Subsystem Does Power Management
+pm.txt
+        - info on Linux power management support.
+pm_qos_interface.txt
+        - info on Linux PM Quality of Service interface
+power_supply_class.txt
+        - Tells userspace about battery, UPS, AC or DC power supply properties
 s2ram.txt
         - How to get suspend to ram working (and debug it when it isn't)
 states.txt
diff --git a/Documentation/pm.txt b/Documentation/power/pm.txt
index da8589a0e07d..be841507e43f 100644
--- a/Documentation/pm.txt
+++ b/Documentation/power/pm.txt
@@ -108,7 +108,7 @@ void pm_unregister_all(pm_callback cback);
  *          EINVAL if the request is not supported
  *          EBUSY if the device is now busy and cannot handle the request
  *          ENOMEM if the device was unable to handle the request due to memory
- *          
+ *
  * Details: The device request callback will be called before the
  *          device/system enters a suspend state (ACPI D1-D3) or
  *          or after the device/system resumes from suspend (ACPI D0).
diff --git a/Documentation/pm_qos_interface.txt b/Documentation/power/pm_qos_interface.txt
index 49adb1a33514..49adb1a33514 100644
--- a/Documentation/pm_qos_interface.txt
+++ b/Documentation/power/pm_qos_interface.txt
diff --git a/Documentation/power_supply_class.txt b/Documentation/power/power_supply_class.txt
index a8686e5a6857..a8686e5a6857 100644
--- a/Documentation/power_supply_class.txt
+++ b/Documentation/power/power_supply_class.txt
diff --git a/Documentation/thermal/sysfs-api.txt b/Documentation/thermal/sysfs-api.txt
index ba9c2da5a8c2..d9f28be75403 100644
--- a/Documentation/thermal/sysfs-api.txt
+++ b/Documentation/thermal/sysfs-api.txt
@@ -143,10 +143,10 @@ type				Strings which represent the thermal zone type.
                                 This is given by thermal zone driver as part of registration.
                                 Eg: "ACPI thermal zone" indicates it's a ACPI thermal device
                                 RO
-                                Optional
+                                Required
 
 temp                            Current temperature as reported by thermal zone (sensor)
-                                Unit: degree Celsius
+                                Unit: millidegree Celsius
                                 RO
                                 Required
 
@@ -163,7 +163,7 @@ mode				One of the predefined values in [kernel, user]
                                           charge of the thermal management.
 
 trip_point_[0-*]_temp           The temperature above which trip point will be fired
-                                Unit: degree Celsius
+                                Unit: millidegree Celsius
                                 RO
                                 Optional
 
@@ -193,7 +193,7 @@ type				String which represents the type of device
                                 eg. For memory controller device on intel_menlow platform:
                                 this should be "Memory controller"
                                 RO
-                                Optional
+                                Required
 
 max_state                       The maximum permissible cooling state of this cooling device.
                                 RO
@@ -219,16 +219,16 @@ the sys I/F structure will be built like this:
 
 |thermal_zone1:
         |-----type:                     ACPI thermal zone
-        |-----temp:                     37
+        |-----temp:                     37000
         |-----mode:                     kernel
-        |-----trip_point_0_temp:        100
+        |-----trip_point_0_temp:        100000
         |-----trip_point_0_type:        critical
-        |-----trip_point_1_temp:        80
+        |-----trip_point_1_temp:        80000
         |-----trip_point_1_type:        passive
-        |-----trip_point_2_temp:        70
-        |-----trip_point_2_type:        active[0]
-        |-----trip_point_3_temp:        60
-        |-----trip_point_3_type:        active[1]
+        |-----trip_point_2_temp:        70000
+        |-----trip_point_2_type:        active0
+        |-----trip_point_3_temp:        60000
+        |-----trip_point_3_type:        active1
         |-----cdev0:                    --->/sys/class/thermal/cooling_device0
         |-----cdev0_trip_point:         1       /* cdev0 can be used for passive */
         |-----cdev1:                    --->/sys/class/thermal/cooling_device3
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 237fc128143d..6c70fed0f9a0 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1259,7 +1259,7 @@ menuconfig APM
           machines with more than one CPU.
 
           In order to use APM, you will need supporting software. For location
-          and more information, read <file:Documentation/pm.txt> and the
+          and more information, read <file:Documentation/power/pm.txt> and the
           Battery Powered Linux mini-HOWTO, available from
           <http://www.tldp.org/docs.html#howto>.
 
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index f688c214be0c..fbcaa069be86 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -283,24 +283,23 @@ config ACPI_TOSHIBA
           If you have a legacy free Toshiba laptop (such as the Libretto L1
           series), say Y.
 
-config ACPI_CUSTOM_DSDT
-        bool "Include Custom DSDT"
+config ACPI_CUSTOM_DSDT_FILE
+        string "Custom DSDT Table file to include"
+        default ""
         depends on !STANDALONE
-        default n 
         help
           This option supports a custom DSDT by linking it into the kernel.
           See Documentation/acpi/dsdt-override.txt
 
-          If unsure, say N.
-
-config ACPI_CUSTOM_DSDT_FILE
-        string "Custom DSDT Table file to include"
-        depends on ACPI_CUSTOM_DSDT
-        default ""
-        help
           Enter the full path name to the file which includes the AmlCode
           declaration.
 
+          If unsure, don't enter a file name.
+
+config ACPI_CUSTOM_DSDT
+        bool
+        default ACPI_CUSTOM_DSDT_FILE != ""
+
 config ACPI_CUSTOM_DSDT_INITRD
         bool "Read Custom DSDT from initramfs"
         depends on BLK_DEV_INITRD
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index ce3c0a2cbac4..5b6760e0f957 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -776,7 +776,7 @@ static int __init acpi_init(void)
 
         acpi_kobj = kobject_create_and_add("acpi", firmware_kobj);
         if (!acpi_kobj) {
-                printk(KERN_WARNING "%s: kset create error\n", __FUNCTION__);
+                printk(KERN_WARNING "%s: kset create error\n", __func__);
                 acpi_kobj = NULL;
         }
 
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 24a7865a57cb..6c5da83cdb68 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -449,6 +449,7 @@ static int acpi_button_add(struct acpi_device *device)
         input->phys = button->phys;
         input->id.bustype = BUS_HOST;
         input->id.product = button->type;
+        input->dev.parent = &device->dev;
 
         switch (button->type) {
         case ACPI_BUTTON_TYPE_POWER:
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index caf873c14bfb..e7e197e3a4ff 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -129,6 +129,7 @@ static struct acpi_ec {
         struct mutex lock;
         wait_queue_head_t wait;
         struct list_head list;
+        atomic_t irq_count;
         u8 handlers_installed;
 } *boot_ec, *first_ec;
 
@@ -181,6 +182,8 @@ static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll)
 {
         int ret = 0;
 
+        atomic_set(&ec->irq_count, 0);
+
         if (unlikely(event == ACPI_EC_EVENT_OBF_1 &&
                      test_bit(EC_FLAGS_NO_OBF1_GPE, &ec->flags)))
                 force_poll = 1;
@@ -227,6 +230,7 @@ static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll)
                 while (time_before(jiffies, delay)) {
                         if (acpi_ec_check_status(ec, event))
                                 goto end;
+                        msleep(5);
                 }
         }
         pr_err(PREFIX "acpi_ec_wait timeout,"
@@ -529,6 +533,13 @@ static u32 acpi_ec_gpe_handler(void *data)
         struct acpi_ec *ec = data;
 
         pr_debug(PREFIX "~~~> interrupt\n");
+        atomic_inc(&ec->irq_count);
+        if (atomic_read(&ec->irq_count) > 5) {
+                pr_err(PREFIX "GPE storm detected, disabling EC GPE\n");
+                acpi_disable_gpe(NULL, ec->gpe, ACPI_ISR);
+                clear_bit(EC_FLAGS_GPE_MODE, &ec->flags);
+                return ACPI_INTERRUPT_HANDLED;
+        }
         clear_bit(EC_FLAGS_WAIT_GPE, &ec->flags);
         if (test_bit(EC_FLAGS_GPE_MODE, &ec->flags))
                 wake_up(&ec->wait);
@@ -943,11 +954,7 @@ int __init acpi_ec_ecdt_probe(void)
                 boot_ec->command_addr = ecdt_ptr->control.address;
                 boot_ec->data_addr = ecdt_ptr->data.address;
                 boot_ec->gpe = ecdt_ptr->gpe;
-                if (ACPI_FAILURE(acpi_get_handle(NULL, ecdt_ptr->id,
-                                &boot_ec->handle))) {
-                        pr_info("Failed to locate handle for boot EC\n");
-                        boot_ec->handle = ACPI_ROOT_OBJECT;
-                }
+                boot_ec->handle = ACPI_ROOT_OBJECT;
         } else {
                 /* This workaround is needed only on some broken machines,
                  * which require early EC, but fail to provide ECDT */
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 8edba7b678eb..065819ba87c7 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -1237,7 +1237,7 @@ int acpi_check_resource_conflict(struct resource *res)
 
         if (clash) {
                 if (acpi_enforce_resources != ENFORCE_RESOURCES_NO) {
-                        printk(KERN_INFO "%sACPI: %s resource %s [0x%llx-0x%llx]"
+                        printk("%sACPI: %s resource %s [0x%llx-0x%llx]"
                                " conflicts with ACPI region %s"
                                " [0x%llx-0x%llx]\n",
                                acpi_enforce_resources == ENFORCE_RESOURCES_LAX
diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c
index 7f19859580c7..7af414a3c63e 100644
--- a/drivers/acpi/pci_irq.c
+++ b/drivers/acpi/pci_irq.c
@@ -25,6 +25,7 @@
  */
 
 
+#include <linux/dmi.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -76,6 +77,101 @@ static struct acpi_prt_entry *acpi_pci_irq_find_prt_entry(int segment,
         return NULL;
 }
 
+/* http://bugzilla.kernel.org/show_bug.cgi?id=4773 */
+static struct dmi_system_id medion_md9580[] = {
+        {
+                .ident = "Medion MD9580-F laptop",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "A555"),
+                },
+        },
+        { }
+};
+
+/* http://bugzilla.kernel.org/show_bug.cgi?id=5044 */
+static struct dmi_system_id dell_optiplex[] = {
+        {
+                .ident = "Dell Optiplex GX1",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex GX1 600S+"),
+                },
+        },
+        { }
+};
+
+/* http://bugzilla.kernel.org/show_bug.cgi?id=10138 */
+static struct dmi_system_id hp_t5710[] = {
+        {
+                .ident = "HP t5710",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "hp t5000 series"),
+                        DMI_MATCH(DMI_BOARD_NAME, "098Ch"),
+                },
+        },
+        { }
+};
+
+struct prt_quirk {
+        struct dmi_system_id    *system;
+        unsigned int            segment;
+        unsigned int            bus;
+        unsigned int            device;
+        unsigned char           pin;
+        char                    *source;        /* according to BIOS */
+        char                    *actual_source;
+};
+
+/*
+ * These systems have incorrect _PRT entries.  The BIOS claims the PCI
+ * interrupt at the listed segment/bus/device/pin is connected to the first
+ * link device, but it is actually connected to the second.
+ */
+static struct prt_quirk prt_quirks[] = {
+        { medion_md9580, 0, 0, 9, 'A',
+                "\\_SB_.PCI0.ISA.LNKA",
+                "\\_SB_.PCI0.ISA.LNKB"},
+        { dell_optiplex, 0, 0, 0xd, 'A',
+                "\\_SB_.LNKB",
+                "\\_SB_.LNKA"},
+        { hp_t5710, 0, 0, 1, 'A',
+                "\\_SB_.PCI0.LNK1",
+                "\\_SB_.PCI0.LNK3"},
+};
+
+static void
+do_prt_fixups(struct acpi_prt_entry *entry, struct acpi_pci_routing_table *prt)
+{
+        int i;
+        struct prt_quirk *quirk;
+
+        for (i = 0; i < ARRAY_SIZE(prt_quirks); i++) {
+                quirk = &prt_quirks[i];
+
+                /* All current quirks involve link devices, not GSIs */
+                if (!prt->source)
+                        continue;
+
+                if (dmi_check_system(quirk->system) &&
+                    entry->id.segment == quirk->segment &&
+                    entry->id.bus == quirk->bus &&
+                    entry->id.device == quirk->device &&
+                    entry->pin + 'A' == quirk->pin &&
+                    !strcmp(prt->source, quirk->source) &&
+                    strlen(prt->source) >= strlen(quirk->actual_source)) {
+                        printk(KERN_WARNING PREFIX "firmware reports "
+                                "%04x:%02x:%02x[%c] connected to %s; "
+                                "changing to %s\n",
+                                entry->id.segment, entry->id.bus,
+                                entry->id.device, 'A' + entry->pin,
+                                prt->source, quirk->actual_source);
+                        strcpy(prt->source, quirk->actual_source);
+                }
+        }
+}
+
 static int
 acpi_pci_irq_add_entry(acpi_handle handle,
                        int segment, int bus, struct acpi_pci_routing_table *prt)
@@ -96,6 +192,8 @@ acpi_pci_irq_add_entry(acpi_handle handle,
         entry->id.function = prt->address & 0xFFFF;
         entry->pin = prt->pin;
 
+        do_prt_fixups(entry, prt);
+
         /*
          * Type 1: Dynamic
          * ---------------
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index f14ff1ffab29..c3fed31166b5 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -184,7 +184,7 @@ static void acpi_pci_bridge_scan(struct acpi_device *device)
                 }
 }
 
-static int acpi_pci_root_add(struct acpi_device *device)
+static int __devinit acpi_pci_root_add(struct acpi_device *device)
 {
         int result = 0;
         struct acpi_pci_root *root = NULL;
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index a3cc8a98255c..36a68fa114e3 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -840,17 +840,19 @@ static int is_processor_present(acpi_handle handle)
 
 
         status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
-        /*
-         * if a processor object does not have an _STA object,
-         * OSPM assumes that the processor is present.
-         */
-        if (status == AE_NOT_FOUND)
-                return 1;
 
         if (ACPI_SUCCESS(status) && (sta & ACPI_STA_DEVICE_PRESENT))
                 return 1;
 
-        ACPI_EXCEPTION((AE_INFO, status, "Processor Device is not present"));
+        /*
+         * _STA is mandatory for a processor that supports hot plug
+         */
+        if (status == AE_NOT_FOUND)
+                ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+                                "Processor does not support hot plug\n"));
+        else
+                ACPI_EXCEPTION((AE_INFO, status,
+                                "Processor Device is not present"));
         return 0;
 }
 
@@ -886,8 +888,8 @@ int acpi_processor_device_add(acpi_handle handle, struct acpi_device **device)
         return 0;
 }
 
-static void
-acpi_processor_hotplug_notify(acpi_handle handle, u32 event, void *data)
+static void __ref acpi_processor_hotplug_notify(acpi_handle handle,
+                                                u32 event, void *data)
 {
         struct acpi_processor *pr;
         struct acpi_device *device = NULL;
@@ -897,9 +899,10 @@ acpi_processor_hotplug_notify(acpi_handle handle, u32 event, void *data)
         switch (event) {
         case ACPI_NOTIFY_BUS_CHECK:
         case ACPI_NOTIFY_DEVICE_CHECK:
-                printk("Processor driver received %s event\n",
+                ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+                "Processor driver received %s event\n",
                        (event == ACPI_NOTIFY_BUS_CHECK) ?
-                       "ACPI_NOTIFY_BUS_CHECK" : "ACPI_NOTIFY_DEVICE_CHECK");
+                       "ACPI_NOTIFY_BUS_CHECK" : "ACPI_NOTIFY_DEVICE_CHECK"));
 
                 if (!is_processor_present(handle))
                         break;
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 3fac011f9cf9..57570ac47803 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -609,7 +609,8 @@ acpi_bus_get_ejd(acpi_handle handle, acpi_handle *ejd)
         status = acpi_evaluate_object(handle, "_EJD", NULL, &buffer);
         if (ACPI_SUCCESS(status)) {
                 obj = buffer.pointer;
-                status = acpi_get_handle(NULL, obj->string.pointer, ejd);
+                status = acpi_get_handle(ACPI_ROOT_OBJECT, obj->string.pointer,
+                                         ejd);
                 kfree(buffer.pointer);
         }
         return status;
@@ -966,7 +967,7 @@ static void acpi_device_set_id(struct acpi_device *device,
         case ACPI_BUS_TYPE_DEVICE:
                 status = acpi_get_object_info(handle, &buffer);
                 if (ACPI_FAILURE(status)) {
-                        printk(KERN_ERR PREFIX "%s: Error reading device info\n", __FUNCTION__);
+                        printk(KERN_ERR PREFIX "%s: Error reading device info\n", __func__);
                         return;
                 }
 
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index 293a1cbb47c0..d2f71a54726c 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -504,7 +504,7 @@ static void acpi_power_off_prepare(void)
 static void acpi_power_off(void)
 {
         /* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
-        printk("%s called\n", __FUNCTION__);
+        printk("%s called\n", __func__);
         local_irq_disable();
         acpi_enable_wakeup_device(ACPI_STATE_S5);
         acpi_enter_sleep_state(ACPI_STATE_S5);
diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c
index 55cf4c05bb74..4749f379a915 100644
--- a/drivers/acpi/system.c
+++ b/drivers/acpi/system.c
@@ -319,7 +319,7 @@ void acpi_irq_stats_init(void)
                 goto fail;
 
         for (i = 0; i < num_counters; ++i) {
-                char buffer[10];
+                char buffer[12];
                 char *name;
 
                 if (i < num_gpes)
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 8d4b79b4f933..c4e00ac8ea85 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -879,6 +879,8 @@ static void acpi_thermal_check(void *data)
 }
 
 /* sys I/F for generic thermal sysfs support */
+#define KELVIN_TO_MILLICELSIUS(t) (t * 100 - 273200)
+
 static int thermal_get_temp(struct thermal_zone_device *thermal, char *buf)
 {
         struct acpi_thermal *tz = thermal->devdata;
@@ -886,7 +888,7 @@ static int thermal_get_temp(struct thermal_zone_device *thermal, char *buf)
         if (!tz)
                 return -EINVAL;
 
-        return sprintf(buf, "%ld\n", KELVIN_TO_CELSIUS(tz->temperature));
+        return sprintf(buf, "%ld\n", KELVIN_TO_MILLICELSIUS(tz->temperature));
 }
 
 static const char enabled[] = "kernel";
@@ -980,21 +982,21 @@ static int thermal_get_trip_temp(struct thermal_zone_device *thermal,
 
         if (tz->trips.critical.flags.valid) {
                 if (!trip)
-                        return sprintf(buf, "%ld\n", KELVIN_TO_CELSIUS(
+                        return sprintf(buf, "%ld\n", KELVIN_TO_MILLICELSIUS(
                                 tz->trips.critical.temperature));
                 trip--;
         }
 
         if (tz->trips.hot.flags.valid) {
                 if (!trip)
-                        return sprintf(buf, "%ld\n", KELVIN_TO_CELSIUS(
+                        return sprintf(buf, "%ld\n", KELVIN_TO_MILLICELSIUS(
                                         tz->trips.hot.temperature));
                 trip--;
         }
 
         if (tz->trips.passive.flags.valid) {
                 if (!trip)
-                        return sprintf(buf, "%ld\n", KELVIN_TO_CELSIUS(
+                        return sprintf(buf, "%ld\n", KELVIN_TO_MILLICELSIUS(
                                         tz->trips.passive.temperature));
                 trip--;
         }
@@ -1002,7 +1004,7 @@ static int thermal_get_trip_temp(struct thermal_zone_device *thermal,
         for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE &&
                 tz->trips.active[i].flags.valid; i++) {
                 if (!trip)
-                        return sprintf(buf, "%ld\n", KELVIN_TO_CELSIUS(
+                        return sprintf(buf, "%ld\n", KELVIN_TO_MILLICELSIUS(
                                         tz->trips.active[i].temperature));
                 trip--;
         }
diff --git a/drivers/acpi/toshiba_acpi.c b/drivers/acpi/toshiba_acpi.c
index 9e8c20c6a0b7..0a43c8e0eff3 100644
--- a/drivers/acpi/toshiba_acpi.c
+++ b/drivers/acpi/toshiba_acpi.c
@@ -99,6 +99,13 @@ MODULE_LICENSE("GPL");
 #define HCI_VIDEO_OUT_CRT               0x2
 #define HCI_VIDEO_OUT_TV                0x4
 
+static const struct acpi_device_id toshiba_device_ids[] = {
+        {"TOS6200", 0},
+        {"TOS1900", 0},
+        {"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
+
 /* utility
  */
 
diff --git a/drivers/acpi/utilities/utdebug.c b/drivers/acpi/utilities/utdebug.c
index c7e128e5369b..7361204b1eef 100644
--- a/drivers/acpi/utilities/utdebug.c
+++ b/drivers/acpi/utilities/utdebug.c
@@ -109,7 +109,7 @@ void acpi_ut_track_stack_ptr(void)
  * RETURN:      Updated pointer to the function name
  *
  * DESCRIPTION: Remove the "Acpi" prefix from the function name, if present.
- *              This allows compiler macros such as __FUNCTION__ to be used
+ *              This allows compiler macros such as __func__ to be used
  *              with no change to the debug output.
  *
  ******************************************************************************/
diff --git a/drivers/acpi/utilities/utobject.c b/drivers/acpi/utilities/utobject.c
index 76ee766c84f9..e08b3fa6639f 100644
--- a/drivers/acpi/utilities/utobject.c
+++ b/drivers/acpi/utilities/utobject.c
@@ -432,7 +432,7 @@ acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object,
          * element -- which is legal)
          */
         if (!internal_object) {
-                *obj_length = 0;
+                *obj_length = sizeof(union acpi_object);
                 return_ACPI_STATUS(AE_OK);
         }
 
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index eba55b7d6c95..44ea60cf21c0 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -407,6 +407,12 @@ acpi_evaluate_reference(acpi_handle handle,
                         break;
                 }
 
+                if (!element->reference.handle) {
+                        printk(KERN_WARNING PREFIX "Invalid reference in"
+                               " package %s\n", pathname);
+                        status = AE_NULL_ENTRY;
+                        break;
+                }
                 /* Get the  acpi_handle. */
 
                 list->handles[i] = element->reference.handle;
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 12cce69b5441..1bc0c74f2755 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -713,7 +713,7 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
 
         kfree(obj);
 
-        if (device->cap._BCL && device->cap._BCM && device->cap._BQC && max_level > 0){
+        if (device->cap._BCL && device->cap._BCM && max_level > 0) {
                 int result;
                 static int count = 0;
                 char *name;
@@ -1201,7 +1201,7 @@ static int acpi_video_bus_ROM_seq_show(struct seq_file *seq, void *offset)
         if (!video)
                 goto end;
 
-        printk(KERN_INFO PREFIX "Please implement %s\n", __FUNCTION__);
+        printk(KERN_INFO PREFIX "Please implement %s\n", __func__);
         seq_printf(seq, "<TODO>\n");
 
       end:
diff --git a/drivers/acpi/wmi.c b/drivers/acpi/wmi.c
index efacc9f8bfe3..c33b1c6e93b1 100644
--- a/drivers/acpi/wmi.c
+++ b/drivers/acpi/wmi.c
@@ -293,7 +293,7 @@ struct acpi_buffer *out)
 {
         struct guid_block *block = NULL;
         struct wmi_block *wblock = NULL;
-        acpi_handle handle;
+        acpi_handle handle, wc_handle;
         acpi_status status, wc_status = AE_ERROR;
         struct acpi_object_list input, wc_input;
         union acpi_object wc_params[1], wq_params[1];
@@ -338,8 +338,10 @@ struct acpi_buffer *out)
                  * expensive, but have no corresponding WCxx method. So we
                  * should not fail if this happens.
                  */
-                wc_status = acpi_evaluate_object(handle, wc_method,
-                        &wc_input, NULL);
+                wc_status = acpi_get_handle(handle, wc_method, &wc_handle);
+                if (ACPI_SUCCESS(wc_status))
+                        wc_status = acpi_evaluate_object(handle, wc_method,
+                                &wc_input, NULL);
         }
 
         strcpy(method, "WQ");
@@ -351,7 +353,7 @@ struct acpi_buffer *out)
          * If ACPI_WMI_EXPENSIVE, call the relevant WCxx method, even if
          * the WQxx method failed - we should disable collection anyway.
          */
-        if ((block->flags & ACPI_WMI_EXPENSIVE) && wc_status) {
+        if ((block->flags & ACPI_WMI_EXPENSIVE) && ACPI_SUCCESS(wc_status)) {
                 wc_params[0].integer.value = 0;
                 status = acpi_evaluate_object(handle,
                 wc_method, &wc_input, NULL);
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 982e27b86d10..962817e49fba 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -108,6 +108,7 @@ config ACER_WMI
         depends on ACPI
         depends on LEDS_CLASS
         depends on BACKLIGHT_CLASS_DEVICE
+        depends on SERIO_I8042
         select ACPI_WMI
         ---help---
           This is a driver for newer Acer (and Wistron) laptops. It adds
diff --git a/drivers/misc/acer-wmi.c b/drivers/misc/acer-wmi.c
index 74d12b4a3abd..dd13a3749927 100644
--- a/drivers/misc/acer-wmi.c
+++ b/drivers/misc/acer-wmi.c
@@ -219,6 +219,15 @@ static struct dmi_system_id acer_quirks[] = {
         },
         {
                 .callback = dmi_matched,
+                .ident = "Acer Aspire 3610",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3610"),
+                },
+                .driver_data = &quirk_acer_travelmate_2490,
+        },
+        {
+                .callback = dmi_matched,
                 .ident = "Acer Aspire 5100",
                 .matches = {
                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
@@ -228,6 +237,15 @@ static struct dmi_system_id acer_quirks[] = {
         },
         {
                 .callback = dmi_matched,
+                .ident = "Acer Aspire 5610",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
+                },
+                .driver_data = &quirk_acer_travelmate_2490,
+        },
+        {
+                .callback = dmi_matched,
                 .ident = "Acer Aspire 5630",
                 .matches = {
                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
@@ -761,11 +779,11 @@ enum led_brightness value)
 }
 
 static struct led_classdev mail_led = {
-        .name = "acer-mail:green",
+        .name = "acer-wmi::mail",
         .brightness_set = mail_led_set,
 };
 
-static int __init acer_led_init(struct device *dev)
+static int __devinit acer_led_init(struct device *dev)
 {
         return led_classdev_register(dev, &mail_led);
 }
@@ -798,7 +816,7 @@ static struct backlight_ops acer_bl_ops = {
         .update_status = update_bl_status,
 };
 
-static int __init acer_backlight_init(struct device *dev)
+static int __devinit acer_backlight_init(struct device *dev)
 {
         struct backlight_device *bd;
 
@@ -817,7 +835,7 @@ static int __init acer_backlight_init(struct device *dev)
         return 0;
 }
 
-static void __exit acer_backlight_exit(void)
+static void acer_backlight_exit(void)
 {
         backlight_device_unregister(acer_backlight_device);
 }
@@ -1052,11 +1070,12 @@ static int __init acer_wmi_init(void)
 
         if (wmi_has_guid(WMID_GUID2) && interface) {
                 if (ACPI_FAILURE(WMID_set_capabilities())) {
-                        printk(ACER_ERR "Unable to detect available devices\n");
+                        printk(ACER_ERR "Unable to detect available WMID "
+                                        "devices\n");
                         return -ENODEV;
                 }
         } else if (!wmi_has_guid(WMID_GUID2) && interface) {
-                printk(ACER_ERR "Unable to detect available devices\n");
+                printk(ACER_ERR "No WMID device detection method found\n");
                 return -ENODEV;
         }
 
@@ -1064,21 +1083,20 @@ static int __init acer_wmi_init(void)
                 interface = &AMW0_interface;
 
                 if (ACPI_FAILURE(AMW0_set_capabilities())) {
-                        printk(ACER_ERR "Unable to detect available devices\n");
+                        printk(ACER_ERR "Unable to detect available AMW0 "
+                                        "devices\n");
                         return -ENODEV;
                 }
         }
 
-        if (wmi_has_guid(AMW0_GUID1)) {
-                if (ACPI_FAILURE(AMW0_find_mailled()))
-                        printk(ACER_ERR "Unable to detect mail LED\n");
-        }
+        if (wmi_has_guid(AMW0_GUID1))
+                AMW0_find_mailled();
 
         find_quirks();
 
         if (!interface) {
-                printk(ACER_ERR "No or unsupported WMI interface, unable to ");
-                printk(KERN_CONT "load.\n");
+                printk(ACER_ERR "No or unsupported WMI interface, unable to "
+                                "load\n");
                 return -ENODEV;
         }
 
diff --git a/drivers/misc/sony-laptop.c b/drivers/misc/sony-laptop.c
index 899e3f75f288..02ff3d19b1cc 100644
--- a/drivers/misc/sony-laptop.c
+++ b/drivers/misc/sony-laptop.c
@@ -315,7 +315,7 @@ static void sony_laptop_report_input_event(u8 event)
                 break;
 
         default:
-                if (event > ARRAY_SIZE(sony_laptop_input_index)) {
+                if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
                         dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
                         break;
                 }
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index 4a23654184fc..72f7476930c8 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -272,21 +272,29 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
 {
         acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev);
         acpi_handle tmp;
-        static int state_conv[] = {
-                [0] = 0,
-                [1] = 1,
-                [2] = 2,
-                [3] = 3,
-                [4] = 3
+        static const u8 state_conv[] = {
+                [PCI_D0] = ACPI_STATE_D0,
+                [PCI_D1] = ACPI_STATE_D1,
+                [PCI_D2] = ACPI_STATE_D2,
+                [PCI_D3hot] = ACPI_STATE_D3,
+                [PCI_D3cold] = ACPI_STATE_D3
         };
-        int acpi_state = state_conv[(int __force) state];
 
         if (!handle)
                 return -ENODEV;
         /* If the ACPI device has _EJ0, ignore the device */
         if (ACPI_SUCCESS(acpi_get_handle(handle, "_EJ0", &tmp)))
                 return 0;
-        return acpi_bus_set_power(handle, acpi_state);
+
+        switch (state) {
+        case PCI_D0:
+        case PCI_D1:
+        case PCI_D2:
+        case PCI_D3hot:
+        case PCI_D3cold:
+                return acpi_bus_set_power(handle, state_conv[state]);
+        }
+        return -EINVAL;
 }
 
 
diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
index 69f19f224875..3ab313ed441c 100644
--- a/drivers/thermal/Kconfig
+++ b/drivers/thermal/Kconfig
@@ -4,6 +4,7 @@
 
 menuconfig THERMAL
         bool "Generic Thermal sysfs driver"
+        select HWMON
         default y
         help
           Generic Thermal Sysfs driver offers a generic mechanism for
diff --git a/drivers/thermal/thermal.c b/drivers/thermal/thermal.c
index 8b86e53ccf7a..41bd4c805ace 100644
--- a/drivers/thermal/thermal.c
+++ b/drivers/thermal/thermal.c
@@ -30,8 +30,10 @@
 #include <linux/idr.h>
 #include <linux/thermal.h>
 #include <linux/spinlock.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
 
-MODULE_AUTHOR("Zhang Rui")
+MODULE_AUTHOR("Zhang Rui");
 MODULE_DESCRIPTION("Generic thermal management sysfs support");
 MODULE_LICENSE("GPL");
 
@@ -56,6 +58,9 @@ static LIST_HEAD(thermal_tz_list);
 static LIST_HEAD(thermal_cdev_list);
 static DEFINE_MUTEX(thermal_list_lock);
 
+static struct device *thermal_hwmon;
+#define MAX_THERMAL_ZONES       10
+
 static int get_idr(struct idr *idr, struct mutex *lock, int *id)
 {
         int err;
@@ -87,7 +92,67 @@ static void release_idr(struct idr *idr, struct mutex *lock, int id)
                 mutex_unlock(lock);
 }
 
-/* sys I/F for thermal zone */
+/* hwmon sys I/F*/
+static ssize_t
+name_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+        return sprintf(buf, "thermal_sys_class\n");
+}
+
+static ssize_t
+temp_input_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+        struct thermal_zone_device *tz;
+        struct sensor_device_attribute *sensor_attr
+                                                = to_sensor_dev_attr(attr);
+
+        list_for_each_entry(tz, &thermal_tz_list, node)
+                if (tz->id == sensor_attr->index)
+                        return tz->ops->get_temp(tz, buf);
+
+        return -ENODEV;
+}
+
+static ssize_t
+temp_crit_show(struct device *dev, struct device_attribute *attr,
+                char *buf)
+{
+        struct thermal_zone_device *tz;
+        struct sensor_device_attribute *sensor_attr
+                                                = to_sensor_dev_attr(attr);
+
+        list_for_each_entry(tz, &thermal_tz_list, node)
+                if (tz->id == sensor_attr->index)
+                        return tz->ops->get_trip_temp(tz, 0, buf);
+
+        return -ENODEV;
+}
+
+static DEVICE_ATTR(name, 0444, name_show, NULL);
+static struct sensor_device_attribute sensor_attrs[] = {
+        SENSOR_ATTR(temp1_input, 0444, temp_input_show, NULL, 0),
+        SENSOR_ATTR(temp1_crit, 0444, temp_crit_show, NULL, 0),
+        SENSOR_ATTR(temp2_input, 0444, temp_input_show, NULL, 1),
+        SENSOR_ATTR(temp2_crit, 0444, temp_crit_show, NULL, 1),
+        SENSOR_ATTR(temp3_input, 0444, temp_input_show, NULL, 2),
+        SENSOR_ATTR(temp3_crit, 0444, temp_crit_show, NULL, 2),
+        SENSOR_ATTR(temp4_input, 0444, temp_input_show, NULL, 3),
+        SENSOR_ATTR(temp4_crit, 0444, temp_crit_show, NULL, 3),
+        SENSOR_ATTR(temp5_input, 0444, temp_input_show, NULL, 4),
+        SENSOR_ATTR(temp5_crit, 0444, temp_crit_show, NULL, 4),
+        SENSOR_ATTR(temp6_input, 0444, temp_input_show, NULL, 5),
+        SENSOR_ATTR(temp6_crit, 0444, temp_crit_show, NULL, 5),
+        SENSOR_ATTR(temp7_input, 0444, temp_input_show, NULL, 6),
+        SENSOR_ATTR(temp7_crit, 0444, temp_crit_show, NULL, 6),
+        SENSOR_ATTR(temp8_input, 0444, temp_input_show, NULL, 7),
+        SENSOR_ATTR(temp8_crit, 0444, temp_crit_show, NULL, 7),
+        SENSOR_ATTR(temp9_input, 0444, temp_input_show, NULL, 8),
+        SENSOR_ATTR(temp9_crit, 0444, temp_crit_show, NULL, 8),
+        SENSOR_ATTR(temp10_input, 0444, temp_input_show, NULL, 9),
+        SENSOR_ATTR(temp10_crit, 0444, temp_crit_show, NULL, 9),
+};
+
+/* thermal zone sys I/F */
 
 #define to_thermal_zone(_dev) \
         container_of(_dev, struct thermal_zone_device, device)
@@ -214,7 +279,7 @@ do {	\
         device_remove_file(_dev, &trip_point_attrs[_index * 2 + 1]);    \
 } while (0)
 
-/* sys I/F for cooling device */
+/* cooling device sys I/F */
 #define to_cooling_device(_dev) \
         container_of(_dev, struct thermal_cooling_device, device)
 
@@ -447,6 +512,9 @@ struct thermal_cooling_device *thermal_cooling_device_register(char *type,
         struct thermal_zone_device *pos;
         int result;
 
+        if (!type)
+                return ERR_PTR(-EINVAL);
+
         if (strlen(type) >= THERMAL_NAME_LENGTH)
                 return ERR_PTR(-EINVAL);
 
@@ -477,11 +545,9 @@ struct thermal_cooling_device *thermal_cooling_device_register(char *type,
         }
 
         /* sys I/F */
-        if (type) {
-                result = device_create_file(&cdev->device, &dev_attr_cdev_type);
-                if (result)
-                        goto unregister;
-        }
+        result = device_create_file(&cdev->device, &dev_attr_cdev_type);
+        if (result)
+                goto unregister;
 
         result = device_create_file(&cdev->device, &dev_attr_max_state);
         if (result)
@@ -547,8 +613,8 @@ void thermal_cooling_device_unregister(struct
                 tz->ops->unbind(tz, cdev);
         }
         mutex_unlock(&thermal_list_lock);
-        if (cdev->type[0])
-                device_remove_file(&cdev->device, &dev_attr_cdev_type);
+
+        device_remove_file(&cdev->device, &dev_attr_cdev_type);
         device_remove_file(&cdev->device, &dev_attr_max_state);
         device_remove_file(&cdev->device, &dev_attr_cur_state);
 
@@ -580,6 +646,9 @@ struct thermal_zone_device *thermal_zone_device_register(char *type,
         int result;
         int count;
 
+        if (!type)
+                return ERR_PTR(-EINVAL);
+
         if (strlen(type) >= THERMAL_NAME_LENGTH)
                 return ERR_PTR(-EINVAL);
 
@@ -601,6 +670,13 @@ struct thermal_zone_device *thermal_zone_device_register(char *type,
                 kfree(tz);
                 return ERR_PTR(result);
         }
+        if (tz->id >= MAX_THERMAL_ZONES) {
+                printk(KERN_ERR PREFIX
+                        "Too many thermal zones\n");
+                release_idr(&thermal_tz_idr, &thermal_idr_lock, tz->id);
+                kfree(tz);
+                return ERR_PTR(-EINVAL);
+        }
 
         strcpy(tz->type, type);
         tz->ops = ops;
@@ -615,13 +691,28 @@ struct thermal_zone_device *thermal_zone_device_register(char *type,
                 return ERR_PTR(result);
         }
 
-        /* sys I/F */
-        if (type) {
-                result = device_create_file(&tz->device, &dev_attr_type);
-                if (result)
-                        goto unregister;
+        /* hwmon sys I/F */
+        result = device_create_file(thermal_hwmon,
+                                        &sensor_attrs[tz->id * 2].dev_attr);
+        if (result)
+                goto unregister;
+
+        if (trips > 0) {
+                char buf[40];
+                result = tz->ops->get_trip_type(tz, 0, buf);
+                if (result > 0 && !strcmp(buf, "critical\n")) {
+                        result = device_create_file(thermal_hwmon,
+                                        &sensor_attrs[tz->id * 2 + 1].dev_attr);
+                        if (result)
+                                goto unregister;
+                }
         }
 
+        /* sys I/F */
+        result = device_create_file(&tz->device, &dev_attr_type);
+        if (result)
+                goto unregister;
+
         result = device_create_file(&tz->device, &dev_attr_temp);
         if (result)
                 goto unregister;
@@ -687,8 +778,17 @@ void thermal_zone_device_unregister(struct thermal_zone_device *tz)
                     tz->ops->unbind(tz, cdev);
         mutex_unlock(&thermal_list_lock);
 
-        if (tz->type[0])
-                device_remove_file(&tz->device, &dev_attr_type);
+        device_remove_file(thermal_hwmon,
+                                &sensor_attrs[tz->id * 2].dev_attr);
+        if (tz->trips > 0) {
+                char buf[40];
+                if (tz->ops->get_trip_type(tz, 0, buf) > 0)
+                        if (!strcmp(buf, "critical\n"))
+                                device_remove_file(thermal_hwmon,
+                                &sensor_attrs[tz->id * 2 + 1].dev_attr);
+        }
+
+        device_remove_file(&tz->device, &dev_attr_type);
         device_remove_file(&tz->device, &dev_attr_temp);
         if (tz->ops->get_mode)
                 device_remove_file(&tz->device, &dev_attr_mode);
@@ -705,6 +805,19 @@ void thermal_zone_device_unregister(struct thermal_zone_device *tz)
 
 EXPORT_SYMBOL(thermal_zone_device_unregister);
 
+static void thermal_exit(void)
+{
+        if (thermal_hwmon) {
+                device_remove_file(thermal_hwmon, &dev_attr_name);
+                hwmon_device_unregister(thermal_hwmon);
+        }
+        class_unregister(&thermal_class);
+        idr_destroy(&thermal_tz_idr);
+        idr_destroy(&thermal_cdev_idr);
+        mutex_destroy(&thermal_idr_lock);
+        mutex_destroy(&thermal_list_lock);
+}
+
 static int __init thermal_init(void)
 {
         int result = 0;
@@ -716,16 +829,20 @@ static int __init thermal_init(void)
                 mutex_destroy(&thermal_idr_lock);
                 mutex_destroy(&thermal_list_lock);
         }
-        return result;
-}
 
-static void __exit thermal_exit(void)
-{
-        class_unregister(&thermal_class);
-        idr_destroy(&thermal_tz_idr);
-        idr_destroy(&thermal_cdev_idr);
-        mutex_destroy(&thermal_idr_lock);
-        mutex_destroy(&thermal_list_lock);
+        thermal_hwmon = hwmon_device_register(NULL);
+        if (IS_ERR(thermal_hwmon)) {
+                result = PTR_ERR(thermal_hwmon);
+                thermal_hwmon = NULL;
+                printk(KERN_ERR PREFIX
+                        "unable to register hwmon device\n");
+                thermal_exit();
+                return result;
+        }
+
+        result = device_create_file(thermal_hwmon, &dev_attr_name);
+
+        return result;
 }
 
 subsys_initcall(thermal_init);
diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
index 79833170bb9c..6233f3b4ae66 100644
--- a/kernel/power/Kconfig
+++ b/kernel/power/Kconfig
@@ -190,7 +190,7 @@ config APM_EMULATION
           notification of APM "events" (e.g. battery status change).
 
           In order to use APM, you will need supporting software. For location
-          and more information, read <file:Documentation/pm.txt> and the
+          and more information, read <file:Documentation/power/pm.txt> and the
           Battery Powered Linux mini-HOWTO, available from
           <http://www.tldp.org/docs.html#howto>.
 
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 72a020cabb4c..5f91a07c4eac 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -447,7 +447,7 @@ static void memory_bm_free(struct memory_bitmap *bm, int clear_nosave_free)
  *      of @bm->cur_zone_bm are updated.
  */
 
-static void memory_bm_find_bit(struct memory_bitmap *bm, unsigned long pfn,
+static int memory_bm_find_bit(struct memory_bitmap *bm, unsigned long pfn,
                                 void **addr, unsigned int *bit_nr)
 {
         struct zone_bitmap *zone_bm;
@@ -461,7 +461,8 @@ static void memory_bm_find_bit(struct memory_bitmap *bm, unsigned long pfn,
                 while (pfn < zone_bm->start_pfn || pfn >= zone_bm->end_pfn) {
                         zone_bm = zone_bm->next;
 
-                        BUG_ON(!zone_bm);
+                        if (!zone_bm)
+                                return -EFAULT;
                 }
                 bm->cur.zone_bm = zone_bm;
         }
@@ -479,23 +480,40 @@ static void memory_bm_find_bit(struct memory_bitmap *bm, unsigned long pfn,
         pfn -= bb->start_pfn;
         *bit_nr = pfn % BM_BITS_PER_CHUNK;
         *addr = bb->data + pfn / BM_BITS_PER_CHUNK;
+        return 0;
 }
 
 static void memory_bm_set_bit(struct memory_bitmap *bm, unsigned long pfn)
 {
         void *addr;
         unsigned int bit;
+        int error;
 
-        memory_bm_find_bit(bm, pfn, &addr, &bit);
+        error = memory_bm_find_bit(bm, pfn, &addr, &bit);
+        BUG_ON(error);
         set_bit(bit, addr);
 }
 
+static int mem_bm_set_bit_check(struct memory_bitmap *bm, unsigned long pfn)
+{
+        void *addr;
+        unsigned int bit;
+        int error;
+
+        error = memory_bm_find_bit(bm, pfn, &addr, &bit);
+        if (!error)
+                set_bit(bit, addr);
+        return error;
+}
+
 static void memory_bm_clear_bit(struct memory_bitmap *bm, unsigned long pfn)
 {
         void *addr;
         unsigned int bit;
+        int error;
 
-        memory_bm_find_bit(bm, pfn, &addr, &bit);
+        error = memory_bm_find_bit(bm, pfn, &addr, &bit);
+        BUG_ON(error);
         clear_bit(bit, addr);
 }
 
@@ -503,8 +521,10 @@ static int memory_bm_test_bit(struct memory_bitmap *bm, unsigned long pfn)
 {
         void *addr;
         unsigned int bit;
+        int error;
 
-        memory_bm_find_bit(bm, pfn, &addr, &bit);
+        error = memory_bm_find_bit(bm, pfn, &addr, &bit);
+        BUG_ON(error);
         return test_bit(bit, addr);
 }
 
@@ -709,8 +729,15 @@ static void mark_nosave_pages(struct memory_bitmap *bm)
                                 region->end_pfn << PAGE_SHIFT);
 
                 for (pfn = region->start_pfn; pfn < region->end_pfn; pfn++)
-                        if (pfn_valid(pfn))
-                                memory_bm_set_bit(bm, pfn);
+                        if (pfn_valid(pfn)) {
+                                /*
+                                 * It is safe to ignore the result of
+                                 * mem_bm_set_bit_check() here, since we won't
+                                 * touch the PFNs for which the error is
+                                 * returned anyway.
+                                 */
+                                mem_bm_set_bit_check(bm, pfn);
+                        }
         }
 }