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path: root/drivers/acpi/battery.c
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Diffstat (limited to 'drivers/acpi/battery.c')
-rw-r--r--drivers/acpi/battery.c97
1 files changed, 41 insertions, 56 deletions
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 3b92c94ebc60..00b0728efe82 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -132,17 +132,16 @@ acpi_battery_get_info(struct acpi_battery *battery,
struct acpi_buffer data = { 0, NULL };
union acpi_object *package = NULL;
- ACPI_FUNCTION_TRACE("acpi_battery_get_info");
if (!battery || !bif)
- return_VALUE(-EINVAL);
+ return -EINVAL;
/* Evalute _BIF */
status = acpi_evaluate_object(battery->handle, "_BIF", NULL, &buffer);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BIF"));
- return_VALUE(-ENODEV);
+ return -ENODEV;
}
package = (union acpi_object *)buffer.pointer;
@@ -177,7 +176,7 @@ acpi_battery_get_info(struct acpi_battery *battery,
if (!result)
(*bif) = (struct acpi_battery_info *)data.pointer;
- return_VALUE(result);
+ return result;
}
static int
@@ -193,17 +192,16 @@ acpi_battery_get_status(struct acpi_battery *battery,
struct acpi_buffer data = { 0, NULL };
union acpi_object *package = NULL;
- ACPI_FUNCTION_TRACE("acpi_battery_get_status");
if (!battery || !bst)
- return_VALUE(-EINVAL);
+ return -EINVAL;
/* Evalute _BST */
status = acpi_evaluate_object(battery->handle, "_BST", NULL, &buffer);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BST"));
- return_VALUE(-ENODEV);
+ return -ENODEV;
}
package = (union acpi_object *)buffer.pointer;
@@ -238,7 +236,7 @@ acpi_battery_get_status(struct acpi_battery *battery,
if (!result)
(*bst) = (struct acpi_battery_status *)data.pointer;
- return_VALUE(result);
+ return result;
}
static int
@@ -248,25 +246,24 @@ acpi_battery_set_alarm(struct acpi_battery *battery, unsigned long alarm)
union acpi_object arg0 = { ACPI_TYPE_INTEGER };
struct acpi_object_list arg_list = { 1, &arg0 };
- ACPI_FUNCTION_TRACE("acpi_battery_set_alarm");
if (!battery)
- return_VALUE(-EINVAL);
+ return -EINVAL;
if (!battery->flags.alarm)
- return_VALUE(-ENODEV);
+ return -ENODEV;
arg0.integer.value = alarm;
status = acpi_evaluate_object(battery->handle, "_BTP", &arg_list, NULL);
if (ACPI_FAILURE(status))
- return_VALUE(-ENODEV);
+ return -ENODEV;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Alarm set to %d\n", (u32) alarm));
battery->alarm = alarm;
- return_VALUE(0);
+ return 0;
}
static int acpi_battery_check(struct acpi_battery *battery)
@@ -277,18 +274,17 @@ static int acpi_battery_check(struct acpi_battery *battery)
struct acpi_device *device = NULL;
struct acpi_battery_info *bif = NULL;
- ACPI_FUNCTION_TRACE("acpi_battery_check");
if (!battery)
- return_VALUE(-EINVAL);
+ return -EINVAL;
result = acpi_bus_get_device(battery->handle, &device);
if (result)
- return_VALUE(result);
+ return result;
result = acpi_bus_get_status(device);
if (result)
- return_VALUE(result);
+ return result;
/* Insertion? */
@@ -300,7 +296,7 @@ static int acpi_battery_check(struct acpi_battery *battery)
result = acpi_battery_get_info(battery, &bif);
if (result)
- return_VALUE(result);
+ return result;
battery->flags.power_unit = bif->power_unit;
battery->trips.warning = bif->design_capacity_warning;
@@ -324,7 +320,7 @@ static int acpi_battery_check(struct acpi_battery *battery)
battery->flags.present = device->status.battery_present;
- return_VALUE(result);
+ return result;
}
/* --------------------------------------------------------------------------
@@ -339,7 +335,6 @@ static int acpi_battery_read_info(struct seq_file *seq, void *offset)
struct acpi_battery_info *bif = NULL;
char *units = "?";
- ACPI_FUNCTION_TRACE("acpi_battery_read_info");
if (!battery)
goto end;
@@ -409,7 +404,7 @@ static int acpi_battery_read_info(struct seq_file *seq, void *offset)
end:
kfree(bif);
- return_VALUE(0);
+ return 0;
}
static int acpi_battery_info_open_fs(struct inode *inode, struct file *file)
@@ -424,7 +419,6 @@ static int acpi_battery_read_state(struct seq_file *seq, void *offset)
struct acpi_battery_status *bst = NULL;
char *units = "?";
- ACPI_FUNCTION_TRACE("acpi_battery_read_state");
if (!battery)
goto end;
@@ -487,7 +481,7 @@ static int acpi_battery_read_state(struct seq_file *seq, void *offset)
end:
kfree(bst);
- return_VALUE(0);
+ return 0;
}
static int acpi_battery_state_open_fs(struct inode *inode, struct file *file)
@@ -500,7 +494,6 @@ static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)
struct acpi_battery *battery = (struct acpi_battery *)seq->private;
char *units = "?";
- ACPI_FUNCTION_TRACE("acpi_battery_read_alarm");
if (!battery)
goto end;
@@ -525,7 +518,7 @@ static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)
seq_printf(seq, "%d %sh\n", (u32) battery->alarm, units);
end:
- return_VALUE(0);
+ return 0;
}
static ssize_t
@@ -538,25 +531,24 @@ acpi_battery_write_alarm(struct file *file,
struct seq_file *m = (struct seq_file *)file->private_data;
struct acpi_battery *battery = (struct acpi_battery *)m->private;
- ACPI_FUNCTION_TRACE("acpi_battery_write_alarm");
if (!battery || (count > sizeof(alarm_string) - 1))
- return_VALUE(-EINVAL);
+ return -EINVAL;
if (!battery->flags.present)
- return_VALUE(-ENODEV);
+ return -ENODEV;
if (copy_from_user(alarm_string, buffer, count))
- return_VALUE(-EFAULT);
+ return -EFAULT;
alarm_string[count] = '\0';
result = acpi_battery_set_alarm(battery,
simple_strtoul(alarm_string, NULL, 0));
if (result)
- return_VALUE(result);
+ return result;
- return_VALUE(count);
+ return count;
}
static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file)
@@ -593,13 +585,12 @@ static int acpi_battery_add_fs(struct acpi_device *device)
{
struct proc_dir_entry *entry = NULL;
- ACPI_FUNCTION_TRACE("acpi_battery_add_fs");
if (!acpi_device_dir(device)) {
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
acpi_battery_dir);
if (!acpi_device_dir(device))
- return_VALUE(-ENODEV);
+ return -ENODEV;
acpi_device_dir(device)->owner = THIS_MODULE;
}
@@ -607,7 +598,7 @@ static int acpi_battery_add_fs(struct acpi_device *device)
entry = create_proc_entry(ACPI_BATTERY_FILE_INFO,
S_IRUGO, acpi_device_dir(device));
if (!entry)
- return_VALUE(-ENODEV);
+ return -ENODEV;
else {
entry->proc_fops = &acpi_battery_info_ops;
entry->data = acpi_driver_data(device);
@@ -618,7 +609,7 @@ static int acpi_battery_add_fs(struct acpi_device *device)
entry = create_proc_entry(ACPI_BATTERY_FILE_STATUS,
S_IRUGO, acpi_device_dir(device));
if (!entry)
- return_VALUE(-ENODEV);
+ return -ENODEV;
else {
entry->proc_fops = &acpi_battery_state_ops;
entry->data = acpi_driver_data(device);
@@ -630,19 +621,18 @@ static int acpi_battery_add_fs(struct acpi_device *device)
S_IFREG | S_IRUGO | S_IWUSR,
acpi_device_dir(device));
if (!entry)
- return_VALUE(-ENODEV);
+ return -ENODEV;
else {
entry->proc_fops = &acpi_battery_alarm_ops;
entry->data = acpi_driver_data(device);
entry->owner = THIS_MODULE;
}
- return_VALUE(0);
+ return 0;
}
static int acpi_battery_remove_fs(struct acpi_device *device)
{
- ACPI_FUNCTION_TRACE("acpi_battery_remove_fs");
if (acpi_device_dir(device)) {
remove_proc_entry(ACPI_BATTERY_FILE_ALARM,
@@ -656,7 +646,7 @@ static int acpi_battery_remove_fs(struct acpi_device *device)
acpi_device_dir(device) = NULL;
}
- return_VALUE(0);
+ return 0;
}
/* --------------------------------------------------------------------------
@@ -668,13 +658,12 @@ static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
struct acpi_battery *battery = (struct acpi_battery *)data;
struct acpi_device *device = NULL;
- ACPI_FUNCTION_TRACE("acpi_battery_notify");
if (!battery)
- return_VOID;
+ return;
if (acpi_bus_get_device(handle, &device))
- return_VOID;
+ return;
switch (event) {
case ACPI_BATTERY_NOTIFY_STATUS:
@@ -688,7 +677,7 @@ static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
break;
}
- return_VOID;
+ return;
}
static int acpi_battery_add(struct acpi_device *device)
@@ -697,14 +686,13 @@ static int acpi_battery_add(struct acpi_device *device)
acpi_status status = 0;
struct acpi_battery *battery = NULL;
- ACPI_FUNCTION_TRACE("acpi_battery_add");
if (!device)
- return_VALUE(-EINVAL);
+ return -EINVAL;
battery = kmalloc(sizeof(struct acpi_battery), GFP_KERNEL);
if (!battery)
- return_VALUE(-ENOMEM);
+ return -ENOMEM;
memset(battery, 0, sizeof(struct acpi_battery));
battery->handle = device->handle;
@@ -738,7 +726,7 @@ static int acpi_battery_add(struct acpi_device *device)
kfree(battery);
}
- return_VALUE(result);
+ return result;
}
static int acpi_battery_remove(struct acpi_device *device, int type)
@@ -746,10 +734,9 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
acpi_status status = 0;
struct acpi_battery *battery = NULL;
- ACPI_FUNCTION_TRACE("acpi_battery_remove");
if (!device || !acpi_driver_data(device))
- return_VALUE(-EINVAL);
+ return -EINVAL;
battery = (struct acpi_battery *)acpi_driver_data(device);
@@ -761,38 +748,36 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
kfree(battery);
- return_VALUE(0);
+ return 0;
}
static int __init acpi_battery_init(void)
{
int result = 0;
- ACPI_FUNCTION_TRACE("acpi_battery_init");
acpi_battery_dir = proc_mkdir(ACPI_BATTERY_CLASS, acpi_root_dir);
if (!acpi_battery_dir)
- return_VALUE(-ENODEV);
+ 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);
- return_VALUE(-ENODEV);
+ return -ENODEV;
}
- return_VALUE(0);
+ return 0;
}
static void __exit acpi_battery_exit(void)
{
- ACPI_FUNCTION_TRACE("acpi_battery_exit");
acpi_bus_unregister_driver(&acpi_battery_driver);
remove_proc_entry(ACPI_BATTERY_CLASS, acpi_root_dir);
- return_VOID;
+ return;
}
module_init(acpi_battery_init);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-18 15:40:56 +0000