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-rw-r--r--drivers/acpi/bus.c25
-rw-r--r--drivers/acpi/thermal.c11
2 files changed, 36 insertions, 0 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 1b4cf984b081..8df325dafe0f 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -122,6 +122,31 @@ int acpi_bus_get_status(struct acpi_device *device)
122 122
123EXPORT_SYMBOL(acpi_bus_get_status); 123EXPORT_SYMBOL(acpi_bus_get_status);
124 124
125void acpi_bus_private_data_handler(acpi_handle handle,
126 u32 function, void *context)
127{
128 return;
129}
130EXPORT_SYMBOL(acpi_bus_private_data_handler);
131
132int acpi_bus_get_private_data(acpi_handle handle, void **data)
133{
134 acpi_status status = AE_OK;
135
136 if (!*data)
137 return -EINVAL;
138
139 status = acpi_get_data(handle, acpi_bus_private_data_handler, data);
140 if (ACPI_FAILURE(status) || !*data) {
141 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n",
142 handle));
143 return -ENODEV;
144 }
145
146 return 0;
147}
148EXPORT_SYMBOL(acpi_bus_get_private_data);
149
125/* -------------------------------------------------------------------------- 150/* --------------------------------------------------------------------------
126 Power Management 151 Power Management
127 -------------------------------------------------------------------------- */ 152 -------------------------------------------------------------------------- */
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index d317da5c6e9c..740036355722 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -1101,6 +1101,7 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
1101{ 1101{
1102 int trips = 0; 1102 int trips = 0;
1103 int result; 1103 int result;
1104 acpi_status status;
1104 int i; 1105 int i;
1105 1106
1106 if (tz->trips.critical.flags.valid) 1107 if (tz->trips.critical.flags.valid)
@@ -1129,6 +1130,15 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
1129 if (result) 1130 if (result)
1130 return result; 1131 return result;
1131 1132
1133 status = acpi_attach_data(tz->device->handle,
1134 acpi_bus_private_data_handler,
1135 tz->thermal_zone);
1136 if (ACPI_FAILURE(status)) {
1137 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
1138 "Error attaching device data\n"));
1139 return -ENODEV;
1140 }
1141
1132 tz->tz_enabled = 1; 1142 tz->tz_enabled = 1;
1133 1143
1134 printk(KERN_INFO PREFIX "%s is registered as thermal_zone%d\n", 1144 printk(KERN_INFO PREFIX "%s is registered as thermal_zone%d\n",
@@ -1142,6 +1152,7 @@ static void acpi_thermal_unregister_thermal_zone(struct acpi_thermal *tz)
1142 sysfs_remove_link(&tz->thermal_zone->device.kobj, "device"); 1152 sysfs_remove_link(&tz->thermal_zone->device.kobj, "device");
1143 thermal_zone_device_unregister(tz->thermal_zone); 1153 thermal_zone_device_unregister(tz->thermal_zone);
1144 tz->thermal_zone = NULL; 1154 tz->thermal_zone = NULL;
1155 acpi_detach_data(tz->device->handle, acpi_bus_private_data_handler);
1145} 1156}
1146 1157
1147 1158