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path: root/drivers/acpi/button.c
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Diffstat (limited to 'drivers/acpi/button.c')
-rw-r--r--drivers/acpi/button.c72
1 files changed, 26 insertions, 46 deletions
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 4b6d9f0096a1..02594639c4d9 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -112,15 +112,14 @@ static int acpi_button_info_seq_show(struct seq_file *seq, void *offset)
{
struct acpi_button *button = (struct acpi_button *)seq->private;
- ACPI_FUNCTION_TRACE("acpi_button_info_seq_show");
if (!button || !button->device)
- return_VALUE(0);
+ return 0;
seq_printf(seq, "type: %s\n",
acpi_device_name(button->device));
- return_VALUE(0);
+ return 0;
}
static int acpi_button_info_open_fs(struct inode *inode, struct file *file)
@@ -134,10 +133,9 @@ static int acpi_button_state_seq_show(struct seq_file *seq, void *offset)
acpi_status status;
unsigned long state;
- ACPI_FUNCTION_TRACE("acpi_button_state_seq_show");
if (!button || !button->device)
- return_VALUE(0);
+ return 0;
status = acpi_evaluate_integer(button->handle, "_LID", NULL, &state);
if (ACPI_FAILURE(status)) {
@@ -147,7 +145,7 @@ static int acpi_button_state_seq_show(struct seq_file *seq, void *offset)
(state ? "open" : "closed"));
}
- return_VALUE(0);
+ return 0;
}
static int acpi_button_state_open_fs(struct inode *inode, struct file *file)
@@ -164,10 +162,9 @@ static int acpi_button_add_fs(struct acpi_device *device)
struct proc_dir_entry *entry = NULL;
struct acpi_button *button = NULL;
- ACPI_FUNCTION_TRACE("acpi_button_add_fs");
if (!device || !acpi_driver_data(device))
- return_VALUE(-EINVAL);
+ return -EINVAL;
button = acpi_driver_data(device);
@@ -195,21 +192,19 @@ static int acpi_button_add_fs(struct acpi_device *device)
}
if (!entry)
- return_VALUE(-ENODEV);
+ return -ENODEV;
entry->owner = THIS_MODULE;
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), entry);
if (!acpi_device_dir(device))
- return_VALUE(-ENODEV);
+ return -ENODEV;
acpi_device_dir(device)->owner = THIS_MODULE;
/* 'info' [R] */
entry = create_proc_entry(ACPI_BUTTON_FILE_INFO,
S_IRUGO, acpi_device_dir(device));
if (!entry)
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Unable to create '%s' fs entry\n",
- ACPI_BUTTON_FILE_INFO));
+ return -ENODEV;
else {
entry->proc_fops = &acpi_button_info_fops;
entry->data = acpi_driver_data(device);
@@ -221,9 +216,7 @@ static int acpi_button_add_fs(struct acpi_device *device)
entry = create_proc_entry(ACPI_BUTTON_FILE_STATE,
S_IRUGO, acpi_device_dir(device));
if (!entry)
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Unable to create '%s' fs entry\n",
- ACPI_BUTTON_FILE_INFO));
+ return -ENODEV;
else {
entry->proc_fops = &acpi_button_state_fops;
entry->data = acpi_driver_data(device);
@@ -231,14 +224,13 @@ static int acpi_button_add_fs(struct acpi_device *device)
}
}
- return_VALUE(0);
+ return 0;
}
static int acpi_button_remove_fs(struct acpi_device *device)
{
struct acpi_button *button = NULL;
- ACPI_FUNCTION_TRACE("acpi_button_remove_fs");
button = acpi_driver_data(device);
if (acpi_device_dir(device)) {
@@ -253,7 +245,7 @@ static int acpi_button_remove_fs(struct acpi_device *device)
acpi_device_dir(device) = NULL;
}
- return_VALUE(0);
+ return 0;
}
/* --------------------------------------------------------------------------
@@ -264,10 +256,9 @@ static void acpi_button_notify(acpi_handle handle, u32 event, void *data)
{
struct acpi_button *button = (struct acpi_button *)data;
- ACPI_FUNCTION_TRACE("acpi_button_notify");
if (!button || !button->device)
- return_VOID;
+ return;
switch (event) {
case ACPI_BUTTON_NOTIFY_STATUS:
@@ -280,21 +271,20 @@ static void acpi_button_notify(acpi_handle handle, u32 event, void *data)
break;
}
- return_VOID;
+ return;
}
static acpi_status acpi_button_notify_fixed(void *data)
{
struct acpi_button *button = (struct acpi_button *)data;
- ACPI_FUNCTION_TRACE("acpi_button_notify_fixed");
if (!button)
- return_ACPI_STATUS(AE_BAD_PARAMETER);
+ return AE_BAD_PARAMETER;
acpi_button_notify(button->handle, ACPI_BUTTON_NOTIFY_STATUS, button);
- return_ACPI_STATUS(AE_OK);
+ return AE_OK;
}
static int acpi_button_add(struct acpi_device *device)
@@ -303,14 +293,13 @@ static int acpi_button_add(struct acpi_device *device)
acpi_status status = AE_OK;
struct acpi_button *button = NULL;
- ACPI_FUNCTION_TRACE("acpi_button_add");
if (!device)
- return_VALUE(-EINVAL);
+ return -EINVAL;
button = kmalloc(sizeof(struct acpi_button), GFP_KERNEL);
if (!button)
- return_VALUE(-ENOMEM);
+ return -ENOMEM;
memset(button, 0, sizeof(struct acpi_button));
button->device = device;
@@ -349,8 +338,8 @@ static int acpi_button_add(struct acpi_device *device)
sprintf(acpi_device_class(device), "%s/%s",
ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_LID);
} else {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Unsupported hid [%s]\n",
- acpi_device_hid(device)));
+ printk(KERN_ERR PREFIX "Unsupported hid [%s]\n",
+ acpi_device_hid(device));
result = -ENODEV;
goto end;
}
@@ -381,8 +370,6 @@ static int acpi_button_add(struct acpi_device *device)
}
if (ACPI_FAILURE(status)) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Error installing notify handler\n"));
result = -ENODEV;
goto end;
}
@@ -406,7 +393,7 @@ static int acpi_button_add(struct acpi_device *device)
kfree(button);
}
- return_VALUE(result);
+ return result;
}
static int acpi_button_remove(struct acpi_device *device, int type)
@@ -414,10 +401,9 @@ static int acpi_button_remove(struct acpi_device *device, int type)
acpi_status status = 0;
struct acpi_button *button = NULL;
- ACPI_FUNCTION_TRACE("acpi_button_remove");
if (!device || !acpi_driver_data(device))
- return_VALUE(-EINVAL);
+ return -EINVAL;
button = acpi_driver_data(device);
@@ -440,39 +426,33 @@ static int acpi_button_remove(struct acpi_device *device, int type)
break;
}
- if (ACPI_FAILURE(status))
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Error removing notify handler\n"));
-
acpi_button_remove_fs(device);
kfree(button);
- return_VALUE(0);
+ return 0;
}
static int __init acpi_button_init(void)
{
int result = 0;
- ACPI_FUNCTION_TRACE("acpi_button_init");
acpi_button_dir = proc_mkdir(ACPI_BUTTON_CLASS, acpi_root_dir);
if (!acpi_button_dir)
- return_VALUE(-ENODEV);
+ return -ENODEV;
acpi_button_dir->owner = THIS_MODULE;
result = acpi_bus_register_driver(&acpi_button_driver);
if (result < 0) {
remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir);
- return_VALUE(-ENODEV);
+ return -ENODEV;
}
- return_VALUE(0);
+ return 0;
}
static void __exit acpi_button_exit(void)
{
- ACPI_FUNCTION_TRACE("acpi_button_exit");
acpi_bus_unregister_driver(&acpi_button_driver);
@@ -484,7 +464,7 @@ static void __exit acpi_button_exit(void)
remove_proc_entry(ACPI_BUTTON_SUBCLASS_LID, acpi_button_dir);
remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir);
- return_VOID;
+ return;
}
module_init(acpi_button_init);