1 files changed, 32 insertions, 54 deletions

diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 4b6d9f0096a..5ef885e82c7 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -82,20 +82,19 @@ static struct acpi_driver acpi_button_driver = {
 };
 
 struct acpi_button {
-        acpi_handle handle;
         struct acpi_device *device;     /* Fixed button kludge */
         u8 type;
         unsigned long pushed;
 };
 
-static struct file_operations acpi_button_info_fops = {
+static const struct file_operations acpi_button_info_fops = {
         .open = acpi_button_info_open_fs,
         .read = seq_read,
         .llseek = seq_lseek,
         .release = single_release,
 };
 
-static struct file_operations acpi_button_state_fops = {
+static const struct file_operations acpi_button_state_fops = {
         .open = acpi_button_state_open_fs,
         .read = seq_read,
         .llseek = seq_lseek,
@@ -112,15 +111,14 @@ 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)
@@ -134,12 +132,11 @@ 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);
+        status = acpi_evaluate_integer(button->device->handle, "_LID", NULL, &state);
         if (ACPI_FAILURE(status)) {
                 seq_printf(seq, "state:      unsupported\n");
         } else {
@@ -147,7 +144,7 @@ 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 +161,9 @@ 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 +191,19 @@ 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 +215,7 @@ 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 +223,13 @@ 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 +244,7 @@ static int acpi_button_remove_fs(struct acpi_device *device)
                 acpi_device_dir(device) = NULL;
         }
 
-        return_VALUE(0);
+        return 0;
 }
 
 /* --------------------------------------------------------------------------
@@ -264,10 +255,9 @@ 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 +270,20 @@ 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);
+        acpi_button_notify(button->device->handle, ACPI_BUTTON_NOTIFY_STATUS, button);
 
-        return_ACPI_STATUS(AE_OK);
+        return AE_OK;
 }
 
 static int acpi_button_add(struct acpi_device *device)
@@ -303,18 +292,16 @@ 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;
-        button->handle = device->handle;
         acpi_driver_data(device) = button;
 
         /*
@@ -349,8 +336,8 @@ 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;
         }
@@ -373,7 +360,7 @@ static int acpi_button_add(struct acpi_device *device)
                                                      button);
                 break;
         default:
-                status = acpi_install_notify_handler(button->handle,
+                status = acpi_install_notify_handler(device->handle,
                                                      ACPI_DEVICE_NOTIFY,
                                                      acpi_button_notify,
                                                      button);
@@ -381,8 +368,6 @@ 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 +391,7 @@ 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 +399,9 @@ 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);
 
@@ -434,45 +418,39 @@ static int acpi_button_remove(struct acpi_device *device, int type)
                                                     acpi_button_notify_fixed);
                 break;
         default:
-                status = acpi_remove_notify_handler(button->handle,
+                status = acpi_remove_notify_handler(device->handle,
                                                     ACPI_DEVICE_NOTIFY,
                                                     acpi_button_notify);
                 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 +462,7 @@ 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);