ACPI: thermal: add struct acpi_device to struct acpi_thermal.

- Use it instead of acpi_bus_get_device() where we can..

Signed-off-by: Patrick Mochel <mochel@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index c855f44..1d8c250 100644 (file)
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -163,6 +163,7 @@ struct acpi_thermal_flags {
 
 struct acpi_thermal {
        acpi_handle handle;
+       struct acpi_device * device;
        acpi_bus_id name;
        unsigned long temperature;
        unsigned long last_temperature;
@@ -453,10 +454,6 @@ static int acpi_thermal_call_usermode(char *path)
 
 static int acpi_thermal_critical(struct acpi_thermal *tz)
 {
-       int result = 0;
-       struct acpi_device *device = NULL;
-
-
        if (!tz || !tz->trips.critical.flags.valid)
                return -EINVAL;
 
@@ -466,14 +463,10 @@ static int acpi_thermal_critical(struct acpi_thermal *tz)
        } else if (tz->trips.critical.flags.enabled)
                tz->trips.critical.flags.enabled = 0;
 
-       result = acpi_bus_get_device(tz->handle, &device);
-       if (result)
-               return result;
-
        printk(KERN_EMERG
               "Critical temperature reached (%ld C), shutting down.\n",
               KELVIN_TO_CELSIUS(tz->temperature));
-       acpi_bus_generate_event(device, ACPI_THERMAL_NOTIFY_CRITICAL,
+       acpi_bus_generate_event(tz->device, ACPI_THERMAL_NOTIFY_CRITICAL,
                                tz->trips.critical.flags.enabled);
 
        acpi_thermal_call_usermode(ACPI_THERMAL_PATH_POWEROFF);
@@ -483,10 +476,6 @@ static int acpi_thermal_critical(struct acpi_thermal *tz)
 
 static int acpi_thermal_hot(struct acpi_thermal *tz)
 {
-       int result = 0;
-       struct acpi_device *device = NULL;
-
-
        if (!tz || !tz->trips.hot.flags.valid)
                return -EINVAL;
 
@@ -496,11 +485,7 @@ static int acpi_thermal_hot(struct acpi_thermal *tz)
        } else if (tz->trips.hot.flags.enabled)
                tz->trips.hot.flags.enabled = 0;
 
-       result = acpi_bus_get_device(tz->handle, &device);
-       if (result)
-               return result;
-
-       acpi_bus_generate_event(device, ACPI_THERMAL_NOTIFY_HOT,
+       acpi_bus_generate_event(tz->device, ACPI_THERMAL_NOTIFY_HOT,
                                tz->trips.hot.flags.enabled);
 
        /* TBD: Call user-mode "sleep(S4)" function */
@@ -1193,8 +1178,7 @@ static void acpi_thermal_notify(acpi_handle handle, u32 event, void *data)
        if (!tz)
                return;
 
-       if (acpi_bus_get_device(tz->handle, &device))
-               return;
+       device = tz->device;
 
        switch (event) {
        case ACPI_THERMAL_NOTIFY_TEMPERATURE:
@@ -1294,6 +1278,7 @@ static int acpi_thermal_add(struct acpi_device *device)
        memset(tz, 0, sizeof(struct acpi_thermal));
 
        tz->handle = device->handle;
+       tz->device = device;
        strcpy(tz->name, device->pnp.bus_id);
        strcpy(acpi_device_name(device), ACPI_THERMAL_DEVICE_NAME);
        strcpy(acpi_device_class(device), ACPI_THERMAL_CLASS);