Merge master.kernel.org:/home/rmk/linux-2.6-serial

[pandora-kernel.git] / drivers / acpi / battery.c

diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 00b0728..6e52217 100644 (file)
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -59,6 +59,9 @@ ACPI_MODULE_NAME("acpi_battery")
 MODULE_DESCRIPTION(ACPI_BATTERY_DRIVER_NAME);
 MODULE_LICENSE("GPL");
 
+extern struct proc_dir_entry *acpi_lock_battery_dir(void);
+extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
+
 static int acpi_battery_add(struct acpi_device *device);
 static int acpi_battery_remove(struct acpi_device *device, int type);
 
@@ -108,7 +111,7 @@ struct acpi_battery_trips {
 };
 
 struct acpi_battery {
-       acpi_handle handle;
+       struct acpi_device * device;
        struct acpi_battery_flags flags;
        struct acpi_battery_trips trips;
        unsigned long alarm;
@@ -138,7 +141,7 @@ acpi_battery_get_info(struct acpi_battery *battery,
 
        /* Evalute _BIF */
 
-       status = acpi_evaluate_object(battery->handle, "_BIF", NULL, &buffer);
+       status = acpi_evaluate_object(battery->device->handle, "_BIF", NULL, &buffer);
        if (ACPI_FAILURE(status)) {
                ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BIF"));
                return -ENODEV;
@@ -171,7 +174,7 @@ acpi_battery_get_info(struct acpi_battery *battery,
        }
 
       end:
-       acpi_os_free(buffer.pointer);
+       kfree(buffer.pointer);
 
        if (!result)
                (*bif) = (struct acpi_battery_info *)data.pointer;
@@ -198,7 +201,7 @@ acpi_battery_get_status(struct acpi_battery *battery,
 
        /* Evalute _BST */
 
-       status = acpi_evaluate_object(battery->handle, "_BST", NULL, &buffer);
+       status = acpi_evaluate_object(battery->device->handle, "_BST", NULL, &buffer);
        if (ACPI_FAILURE(status)) {
                ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BST"));
                return -ENODEV;
@@ -231,7 +234,7 @@ acpi_battery_get_status(struct acpi_battery *battery,
        }
 
       end:
-       acpi_os_free(buffer.pointer);
+       kfree(buffer.pointer);
 
        if (!result)
                (*bst) = (struct acpi_battery_status *)data.pointer;
@@ -255,7 +258,7 @@ acpi_battery_set_alarm(struct acpi_battery *battery, unsigned long alarm)
 
        arg0.integer.value = alarm;
 
-       status = acpi_evaluate_object(battery->handle, "_BTP", &arg_list, NULL);
+       status = acpi_evaluate_object(battery->device->handle, "_BTP", &arg_list, NULL);
        if (ACPI_FAILURE(status))
                return -ENODEV;
 
@@ -278,9 +281,7 @@ static int acpi_battery_check(struct acpi_battery *battery)
        if (!battery)
                return -EINVAL;
 
-       result = acpi_bus_get_device(battery->handle, &device);
-       if (result)
-               return result;
+       device = battery->device;
 
        result = acpi_bus_get_status(device);
        if (result)
@@ -305,7 +306,7 @@ static int acpi_battery_check(struct acpi_battery *battery)
 
                /* See if alarms are supported, and if so, set default */
 
-               status = acpi_get_handle(battery->handle, "_BTP", &handle);
+               status = acpi_get_handle(battery->device->handle, "_BTP", &handle);
                if (ACPI_SUCCESS(status)) {
                        battery->flags.alarm = 1;
                        acpi_battery_set_alarm(battery, battery->trips.warning);
@@ -556,7 +557,7 @@ static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file)
        return single_open(file, acpi_battery_read_alarm, PDE(inode)->data);
 }
 
-static struct file_operations acpi_battery_info_ops = {
+static const struct file_operations acpi_battery_info_ops = {
        .open = acpi_battery_info_open_fs,
        .read = seq_read,
        .llseek = seq_lseek,
@@ -564,7 +565,7 @@ static struct file_operations acpi_battery_info_ops = {
        .owner = THIS_MODULE,
 };
 
-static struct file_operations acpi_battery_state_ops = {
+static const struct file_operations acpi_battery_state_ops = {
        .open = acpi_battery_state_open_fs,
        .read = seq_read,
        .llseek = seq_lseek,
@@ -572,7 +573,7 @@ static struct file_operations acpi_battery_state_ops = {
        .owner = THIS_MODULE,
 };
 
-static struct file_operations acpi_battery_alarm_ops = {
+static const struct file_operations acpi_battery_alarm_ops = {
        .open = acpi_battery_alarm_open_fs,
        .read = seq_read,
        .write = acpi_battery_write_alarm,
@@ -662,12 +663,13 @@ static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
        if (!battery)
                return;
 
-       if (acpi_bus_get_device(handle, &device))
-               return;
+       device = battery->device;
 
        switch (event) {
        case ACPI_BATTERY_NOTIFY_STATUS:
        case ACPI_BATTERY_NOTIFY_INFO:
+       case ACPI_NOTIFY_BUS_CHECK:
+       case ACPI_NOTIFY_DEVICE_CHECK:
                acpi_battery_check(battery);
                acpi_bus_generate_event(device, event, battery->flags.present);
                break;
@@ -695,7 +697,7 @@ static int acpi_battery_add(struct acpi_device *device)
                return -ENOMEM;
        memset(battery, 0, sizeof(struct acpi_battery));
 
-       battery->handle = device->handle;
+       battery->device = device;
        strcpy(acpi_device_name(device), ACPI_BATTERY_DEVICE_NAME);
        strcpy(acpi_device_class(device), ACPI_BATTERY_CLASS);
        acpi_driver_data(device) = battery;
@@ -708,8 +710,8 @@ static int acpi_battery_add(struct acpi_device *device)
        if (result)
                goto end;
 
-       status = acpi_install_notify_handler(battery->handle,
-                                            ACPI_DEVICE_NOTIFY,
+       status = acpi_install_notify_handler(device->handle,
+                                            ACPI_ALL_NOTIFY,
                                             acpi_battery_notify, battery);
        if (ACPI_FAILURE(status)) {
                result = -ENODEV;
@@ -740,8 +742,8 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
 
        battery = (struct acpi_battery *)acpi_driver_data(device);
 
-       status = acpi_remove_notify_handler(battery->handle,
-                                           ACPI_DEVICE_NOTIFY,
+       status = acpi_remove_notify_handler(device->handle,
+                                           ACPI_ALL_NOTIFY,
                                            acpi_battery_notify);
 
        acpi_battery_remove_fs(device);
@@ -753,17 +755,15 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
 
 static int __init acpi_battery_init(void)
 {
-       int result = 0;
-
+       int result;
 
-       acpi_battery_dir = proc_mkdir(ACPI_BATTERY_CLASS, acpi_root_dir);
+       acpi_battery_dir = acpi_lock_battery_dir();
        if (!acpi_battery_dir)
                return -ENODEV;
-       acpi_battery_dir->owner = THIS_MODULE;
 
        result = acpi_bus_register_driver(&acpi_battery_driver);
        if (result < 0) {
-               remove_proc_entry(ACPI_BATTERY_CLASS, acpi_root_dir);
+               acpi_unlock_battery_dir(acpi_battery_dir);
                return -ENODEV;
        }
 
@@ -775,7 +775,7 @@ static void __exit acpi_battery_exit(void)
 
        acpi_bus_unregister_driver(&acpi_battery_driver);
 
-       remove_proc_entry(ACPI_BATTERY_CLASS, acpi_root_dir);
+       acpi_unlock_battery_dir(acpi_battery_dir);
 
        return;
 }