Merge branch 'release-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-acpi-2.6

* 'release-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-acpi-2.6:
  ACPI: Fix thermal shutdowns
  ACPI: bounds check IRQ to prevent memory corruption
  ACPI: Avoid bogus EC timeout when EC is in Polling mode
  ACPI : Add the EC dmi table to fix the incorrect ECDT table
  ACPI: Properly clear flags on false-positives and send uevent on sudden unplug
  acpi: trivial cleanups
  acer-wmi: Fix wireless and bluetooth on early AMW0 v2 laptops
  ACPI: WMI: Set instance for query block calls
  ACPICA: Additional error checking for pathname utilities
  ACPICA: Fix possible memory leak in Unload() operator
  ACPICA: Fix memory leak when deleting thermal/processor objects

15 files changed, 127 insertions, 34 deletions

diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index bb7c51f712bd..7d2edf143f16 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -563,9 +563,6 @@ EXPORT_SYMBOL_GPL(unregister_hotplug_dock_device);
  */
 static int handle_eject_request(struct dock_station *ds, u32 event)
 {
-        if (!dock_present(ds))
-                return -ENODEV;
-
         if (dock_in_progress(ds))
                 return -EBUSY;
 
@@ -573,8 +570,16 @@ static int handle_eject_request(struct dock_station *ds, u32 event)
          * here we need to generate the undock
          * event prior to actually doing the undock
          * so that the device struct still exists.
+         * Also, even send the dock event if the
+         * device is not present anymore
          */
         dock_event(ds, event, UNDOCK_EVENT);
+
+        if (!dock_present(ds)) {
+                complete_undock(ds);
+                return -ENODEV;
+        }
+
         hotplug_dock_devices(ds, ACPI_NOTIFY_EJECT_REQUEST);
         undock(ds);
         eject_dock(ds);
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 5622aee996b2..13593f9f2197 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -110,6 +110,31 @@ static struct acpi_ec {
         u8 handlers_installed;
 } *boot_ec, *first_ec;
 
+/* 
+ * Some Asus system have exchanged ECDT data/command IO addresses.
+ */
+static int print_ecdt_error(const struct dmi_system_id *id)
+{
+        printk(KERN_NOTICE PREFIX "%s detected - "
+                "ECDT has exchanged control/data I/O address\n",
+                id->ident);
+        return 0;
+}
+
+static struct dmi_system_id __cpuinitdata ec_dmi_table[] = {
+        {
+        print_ecdt_error, "Asus L4R", {
+        DMI_MATCH(DMI_BIOS_VERSION, "1008.006"),
+        DMI_MATCH(DMI_PRODUCT_NAME, "L4R"),
+        DMI_MATCH(DMI_BOARD_NAME, "L4R") }, NULL},
+        {
+        print_ecdt_error, "Asus M6R", {
+        DMI_MATCH(DMI_BIOS_VERSION, "0207"),
+        DMI_MATCH(DMI_PRODUCT_NAME, "M6R"),
+        DMI_MATCH(DMI_BOARD_NAME, "M6R") }, NULL},
+        {},
+};
+
 /* --------------------------------------------------------------------------
                              Transaction Management
    -------------------------------------------------------------------------- */
@@ -196,6 +221,8 @@ static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll)
                                 return 0;
                         msleep(1);
                 }
+                if (acpi_ec_check_status(ec,event))
+                        return 0;
         }
         pr_err(PREFIX "acpi_ec_wait timeout, status = 0x%2.2x, event = %s\n",
                 acpi_ec_read_status(ec),
@@ -911,6 +938,15 @@ int __init acpi_ec_ecdt_probe(void)
                 pr_info(PREFIX "EC description table is found, configuring boot EC\n");
                 boot_ec->command_addr = ecdt_ptr->control.address;
                 boot_ec->data_addr = ecdt_ptr->data.address;
+                if (dmi_check_system(ec_dmi_table)) {
+                        /*
+                         * If the board falls into ec_dmi_table, it means
+                         * that ECDT table gives the incorrect command/status
+                         * & data I/O address. Just fix it.
+                         */
+                        boot_ec->data_addr = ecdt_ptr->control.address;
+                        boot_ec->command_addr = ecdt_ptr->data.address;
+                }
                 boot_ec->gpe = ecdt_ptr->gpe;
                 boot_ec->handle = ACPI_ROOT_OBJECT;
                 acpi_get_handle(ACPI_ROOT_OBJECT, ecdt_ptr->id, &boot_ec->handle);
diff --git a/drivers/acpi/executer/exconfig.c b/drivers/acpi/executer/exconfig.c
index 2a32c843cb4a..8892b9824fae 100644
--- a/drivers/acpi/executer/exconfig.c
+++ b/drivers/acpi/executer/exconfig.c
@@ -479,5 +479,8 @@ acpi_status acpi_ex_unload_table(union acpi_operand_object *ddb_handle)
 
         acpi_tb_set_table_loaded_flag(table_index, FALSE);
 
+        /* Table unloaded, remove a reference to the ddb_handle object */
+
+        acpi_ut_remove_reference(ddb_handle);
         return_ACPI_STATUS(AE_OK);
 }
diff --git a/drivers/acpi/namespace/nsnames.c b/drivers/acpi/namespace/nsnames.c
index 549db42f16cf..bd5773878009 100644
--- a/drivers/acpi/namespace/nsnames.c
+++ b/drivers/acpi/namespace/nsnames.c
@@ -56,13 +56,14 @@ ACPI_MODULE_NAME("nsnames")
  *              Size            - Size of the pathname
  *              *name_buffer    - Where to return the pathname
  *
- * RETURN:      Places the pathname into the name_buffer, in external format
+ * RETURN:      Status
+ *              Places the pathname into the name_buffer, in external format
  *              (name segments separated by path separators)
  *
  * DESCRIPTION: Generate a full pathaname
  *
  ******************************************************************************/
-void
+acpi_status
 acpi_ns_build_external_path(struct acpi_namespace_node *node,
                             acpi_size size, char *name_buffer)
 {
@@ -77,7 +78,7 @@ acpi_ns_build_external_path(struct acpi_namespace_node *node,
         if (index < ACPI_NAME_SIZE) {
                 name_buffer[0] = AML_ROOT_PREFIX;
                 name_buffer[1] = 0;
-                return;
+                return (AE_OK);
         }
 
         /* Store terminator byte, then build name backwards */
@@ -105,11 +106,13 @@ acpi_ns_build_external_path(struct acpi_namespace_node *node,
 
         if (index != 0) {
                 ACPI_ERROR((AE_INFO,
-                            "Could not construct pathname; index=%X, size=%X, Path=%s",
+                            "Could not construct external pathname; index=%X, size=%X, Path=%s",
                             (u32) index, (u32) size, &name_buffer[size]));
+
+                return (AE_BAD_PARAMETER);
         }
 
-        return;
+        return (AE_OK);
 }
 
 #ifdef ACPI_DEBUG_OUTPUT
@@ -129,6 +132,7 @@ acpi_ns_build_external_path(struct acpi_namespace_node *node,
 
 char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node)
 {
+        acpi_status status;
         char *name_buffer;
         acpi_size size;
 
@@ -138,8 +142,7 @@ char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node)
 
         size = acpi_ns_get_pathname_length(node);
         if (!size) {
-                ACPI_ERROR((AE_INFO, "Invalid node failure"));
-                return_PTR(NULL);
+                return (NULL);
         }
 
         /* Allocate a buffer to be returned to caller */
@@ -152,7 +155,11 @@ char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node)
 
         /* Build the path in the allocated buffer */
 
-        acpi_ns_build_external_path(node, size, name_buffer);
+        status = acpi_ns_build_external_path(node, size, name_buffer);
+        if (ACPI_FAILURE(status)) {
+                return (NULL);
+        }
+
         return_PTR(name_buffer);
 }
 #endif
@@ -186,7 +193,7 @@ acpi_size acpi_ns_get_pathname_length(struct acpi_namespace_node *node)
         while (next_node && (next_node != acpi_gbl_root_node)) {
                 if (ACPI_GET_DESCRIPTOR_TYPE(next_node) != ACPI_DESC_TYPE_NAMED) {
                         ACPI_ERROR((AE_INFO,
-                                    "Invalid NS Node (%p) while traversing path",
+                                    "Invalid Namespace Node (%p) while traversing namespace",
                                     next_node));
                         return 0;
                 }
@@ -234,8 +241,7 @@ acpi_ns_handle_to_pathname(acpi_handle target_handle,
 
         required_size = acpi_ns_get_pathname_length(node);
         if (!required_size) {
-                ACPI_ERROR((AE_INFO, "Invalid node failure"));
-                return_ACPI_STATUS(AE_ERROR);
+                return_ACPI_STATUS(AE_BAD_PARAMETER);
         }
 
         /* Validate/Allocate/Clear caller buffer */
@@ -247,7 +253,11 @@ acpi_ns_handle_to_pathname(acpi_handle target_handle,
 
         /* Build the path in the caller buffer */
 
-        acpi_ns_build_external_path(node, required_size, buffer->pointer);
+        status =
+            acpi_ns_build_external_path(node, required_size, buffer->pointer);
+        if (ACPI_FAILURE(status)) {
+                return_ACPI_STATUS(status);
+        }
 
         ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%s [%X]\n",
                           (char *)buffer->pointer, (u32) required_size));
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index 89f3b2abfdc7..cf47805a7448 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -849,7 +849,7 @@ static int __init acpi_irq_penalty_update(char *str, int used)
                 if (irq < 0)
                         continue;
 
-                if (irq >= ACPI_MAX_IRQS)
+                if (irq >= ARRAY_SIZE(acpi_irq_penalty))
                         continue;
 
                 if (used)
@@ -872,10 +872,12 @@ static int __init acpi_irq_penalty_update(char *str, int used)
  */
 void acpi_penalize_isa_irq(int irq, int active)
 {
-        if (active)
-                acpi_irq_penalty[irq] += PIRQ_PENALTY_ISA_USED;
-        else
-                acpi_irq_penalty[irq] += PIRQ_PENALTY_PCI_USING;
+        if (irq >= 0 && irq < ARRAY_SIZE(acpi_irq_penalty)) {
+                if (active)
+                        acpi_irq_penalty[irq] += PIRQ_PENALTY_ISA_USED;
+                else
+                        acpi_irq_penalty[irq] += PIRQ_PENALTY_PCI_USING;
+        }
 }
 
 /*
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index e36422a7122c..d3f0a62efcc1 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -123,7 +123,7 @@ struct acpi_processor_errata errata __read_mostly;
 static int set_no_mwait(const struct dmi_system_id *id)
 {
         printk(KERN_NOTICE PREFIX "%s detected - "
-                "disable mwait for CPU C-stetes\n", id->ident);
+                "disabling mwait for CPU C-states\n", id->ident);
         idle_nomwait = 1;
         return 0;
 }
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 283c08f5f4d4..cf5b1b7b684f 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -41,7 +41,6 @@
 #include <linux/pm_qos_params.h>
 #include <linux/clockchips.h>
 #include <linux/cpuidle.h>
-#include <linux/cpuidle.h>
 
 /*
  * Include the apic definitions for x86 to have the APIC timer related defines
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 0133af49cf06..80e32093e977 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -70,7 +70,7 @@ static DEFINE_MUTEX(performance_mutex);
  *  0 -> cpufreq low level drivers initialized -> consider _PPC values
  *  1 -> ignore _PPC totally -> forced by user through boot param
  */
-static unsigned int ignore_ppc = -1;
+static int ignore_ppc = -1;
 module_param(ignore_ppc, uint, 0644);
 MODULE_PARM_DESC(ignore_ppc, "If the frequency of your machine gets wrongly" \
                  "limited by BIOS, this should help");
diff --git a/drivers/acpi/resources/rscalc.c b/drivers/acpi/resources/rscalc.c
index f61ebc679e66..d9063ea414e3 100644
--- a/drivers/acpi/resources/rscalc.c
+++ b/drivers/acpi/resources/rscalc.c
@@ -587,6 +587,9 @@ acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object,
                         } else {
                                 temp_size_needed +=
                                     acpi_ns_get_pathname_length((*sub_object_list)->reference.node);
+                                if (!temp_size_needed) {
+                                        return_ACPI_STATUS(AE_BAD_PARAMETER);
+                                }
                         }
                 } else {
                         /*
diff --git a/drivers/acpi/utilities/utalloc.c b/drivers/acpi/utilities/utalloc.c
index e7bf34a7b1d2..7dcb67e0b215 100644
--- a/drivers/acpi/utilities/utalloc.c
+++ b/drivers/acpi/utilities/utalloc.c
@@ -242,10 +242,12 @@ acpi_ut_initialize_buffer(struct acpi_buffer * buffer,
 {
         acpi_status status = AE_OK;
 
-        if (!required_length) {
-                WARN_ON(1);
-                return AE_ERROR;
+        /* Parameter validation */
+
+        if (!buffer || !required_length) {
+                return (AE_BAD_PARAMETER);
         }
+
         switch (buffer->length) {
         case ACPI_NO_BUFFER:
 
diff --git a/drivers/acpi/utilities/utdelete.c b/drivers/acpi/utilities/utdelete.c
index c5c791a575c9..42609d3a8aa9 100644
--- a/drivers/acpi/utilities/utdelete.c
+++ b/drivers/acpi/utilities/utdelete.c
@@ -135,6 +135,10 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
                 obj_pointer = object->package.elements;
                 break;
 
+                /*
+                 * These objects have a possible list of notify handlers.
+                 * Device object also may have a GPE block.
+                 */
         case ACPI_TYPE_DEVICE:
 
                 if (object->device.gpe_block) {
@@ -142,9 +146,14 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
                                                        gpe_block);
                 }
 
-                /* Walk the handler list for this device */
+                /*lint -fallthrough */
+
+        case ACPI_TYPE_PROCESSOR:
+        case ACPI_TYPE_THERMAL:
+
+                /* Walk the notify handler list for this object */
 
-                handler_desc = object->device.handler;
+                handler_desc = object->common_notify.handler;
                 while (handler_desc) {
                         next_desc = handler_desc->address_space.next;
                         acpi_ut_remove_reference(handler_desc);
diff --git a/drivers/acpi/utilities/utobject.c b/drivers/acpi/utilities/utobject.c
index e25484495e65..916eff399eb3 100644
--- a/drivers/acpi/utilities/utobject.c
+++ b/drivers/acpi/utilities/utobject.c
@@ -425,6 +425,7 @@ acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object,
                                acpi_size * obj_length)
 {
         acpi_size length;
+        acpi_size size;
         acpi_status status = AE_OK;
 
         ACPI_FUNCTION_TRACE_PTR(ut_get_simple_object_size, internal_object);
@@ -484,10 +485,14 @@ acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object,
                          * Get the actual length of the full pathname to this object.
                          * The reference will be converted to the pathname to the object
                          */
-                        length +=
-                            ACPI_ROUND_UP_TO_NATIVE_WORD
-                            (acpi_ns_get_pathname_length
-                             (internal_object->reference.node));
+                        size =
+                            acpi_ns_get_pathname_length(internal_object->
+                                                        reference.node);
+                        if (!size) {
+                                return_ACPI_STATUS(AE_BAD_PARAMETER);
+                        }
+
+                        length += ACPI_ROUND_UP_TO_NATIVE_WORD(size);
                         break;
 
                 default:
diff --git a/drivers/acpi/wmi.c b/drivers/acpi/wmi.c
index c33b1c6e93b1..cfe2c833474d 100644
--- a/drivers/acpi/wmi.c
+++ b/drivers/acpi/wmi.c
@@ -347,7 +347,7 @@ struct acpi_buffer *out)
         strcpy(method, "WQ");
         strncat(method, block->object_id, 2);
 
-        status = acpi_evaluate_object(handle, method, NULL, out);
+        status = acpi_evaluate_object(handle, method, &input, out);
 
         /*
          * If ACPI_WMI_EXPENSIVE, call the relevant WCxx method, even if
diff --git a/drivers/misc/acer-wmi.c b/drivers/misc/acer-wmi.c
index e7a3fe508dff..b2d9878dc3f0 100644
--- a/drivers/misc/acer-wmi.c
+++ b/drivers/misc/acer-wmi.c
@@ -803,11 +803,30 @@ static acpi_status get_u32(u32 *value, u32 cap)
 
 static acpi_status set_u32(u32 value, u32 cap)
 {
+        acpi_status status;
+
         if (interface->capability & cap) {
                 switch (interface->type) {
                 case ACER_AMW0:
                         return AMW0_set_u32(value, cap, interface);
                 case ACER_AMW0_V2:
+                        if (cap == ACER_CAP_MAILLED)
+                                return AMW0_set_u32(value, cap, interface);
+
+                        /*
+                         * On some models, some WMID methods don't toggle
+                         * properly. For those cases, we want to run the AMW0
+                         * method afterwards to be certain we've really toggled
+                         * the device state.
+                         */
+                        if (cap == ACER_CAP_WIRELESS ||
+                                cap == ACER_CAP_BLUETOOTH) {
+                                status = WMID_set_u32(value, cap, interface);
+                                if (ACPI_FAILURE(status))
+                                        return status;
+
+                                return AMW0_set_u32(value, cap, interface);
+                        }
                 case ACER_WMID:
                         return WMID_set_u32(value, cap, interface);
                 default:
diff --git a/include/acpi/acnamesp.h b/include/acpi/acnamesp.h
index 9ed70a050580..c34008507b69 100644
--- a/include/acpi/acnamesp.h
+++ b/include/acpi/acnamesp.h
@@ -182,7 +182,7 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info);
  */
 u32 acpi_ns_opens_scope(acpi_object_type type);
 
-void
+acpi_status
 acpi_ns_build_external_path(struct acpi_namespace_node *node,
                             acpi_size size, char *name_buffer);