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[4/6] ideapad: add markups, unify comments and return result when init

Message ID 1292234448-2715-1-git-send-email-ike.pan@canonical.com (mailing list archive)
State New, archived
Headers show

Commit Message

Ike Panhc Dec. 13, 2010, 10 a.m. UTC 
None
diff mbox

Patch

diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 04b4f5b..3c6c5b5 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -1,5 +1,5 @@ 
 /*
- *  ideapad_acpi.c - Lenovo IdeaPad ACPI Extras
+ *  ideapad-laptop.c - Lenovo IdeaPad ACPI Extras
  *
  *  Copyright © 2010 Intel Corporation
  *  Copyright © 2010 David Woodhouse <dwmw2@infradead.org>
@@ -168,8 +168,10 @@  static int write_ec_cmd(acpi_handle handle, int cmd, unsigned long data)
 	pr_err("timeout in write_ec_cmd\n");
 	return -1;
 }
-/* the above is ACPI helpers */
 
+/*
+ * camera power
+ */
 static ssize_t show_ideapad_cam(struct device *dev,
 				struct device_attribute *attr,
 				char *buf)
@@ -203,6 +205,9 @@  static ssize_t store_ideapad_cam(struct device *dev,
 
 static DEVICE_ATTR(camera_power, 0644, show_ideapad_cam, store_ideapad_cam);
 
+/*
+ * Rfkill
+ */
 static int ideapad_rfk_set(void *data, bool blocked)
 {
 	int device = (unsigned long)data;
@@ -235,7 +240,8 @@  static void ideapad_sync_rfk_state(struct acpi_device *adevice)
 			rfkill_set_hw_state(priv->rfk[i], hw_blocked);
 }
 
-static int ideapad_register_rfkill(struct acpi_device *adevice, int dev)
+static int __devinit ideapad_register_rfkill(struct acpi_device *adevice,
+					     int dev)
 {
 	struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
 	int ret;
@@ -271,7 +277,8 @@  static int ideapad_register_rfkill(struct acpi_device *adevice, int dev)
 	return 0;
 }
 
-static void ideapad_unregister_rfkill(struct acpi_device *adevice, int dev)
+static void __devexit ideapad_unregister_rfkill(struct acpi_device *adevice,
+						int dev)
 {
 	struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
 
@@ -326,7 +333,6 @@  static void ideapad_platform_exit(void)
 			   &ideapad_attribute_group);
 	platform_device_unregister(ideapad_priv->platform_device);
 }
-/* the above is platform device */
 
 /*
  * input device
@@ -386,15 +392,17 @@  static void ideapad_input_report(unsigned long scancode)
 {
 	sparse_keymap_report_event(ideapad_priv->inputdev, scancode, 1, true);
 }
-/* the above is input device */
 
+/*
+ * module init/exit
+ */
 static const struct acpi_device_id ideapad_device_ids[] = {
 	{ "VPC2004", 0},
 	{ "", 0},
 };
 MODULE_DEVICE_TABLE(acpi, ideapad_device_ids);
 
-static int ideapad_acpi_add(struct acpi_device *adevice)
+static int __devinit ideapad_acpi_add(struct acpi_device *adevice)
 {
 	int ret, i, cfg;
 	struct ideapad_private *priv;
@@ -432,7 +440,7 @@  platform_failed:
 	return ret;
 }
 
-static int ideapad_acpi_remove(struct acpi_device *adevice, int type)
+static int __devexit ideapad_acpi_remove(struct acpi_device *adevice, int type)
 {
 	struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
 	int i;
@@ -478,19 +486,14 @@  static struct acpi_driver ideapad_acpi_driver = {
 	.owner = THIS_MODULE,
 };
 
-
 static int __init ideapad_acpi_module_init(void)
 {
-	acpi_bus_register_driver(&ideapad_acpi_driver);
-
-	return 0;
+	return acpi_bus_register_driver(&ideapad_acpi_driver);
 }
 
-
 static void __exit ideapad_acpi_module_exit(void)
 {
 	acpi_bus_unregister_driver(&ideapad_acpi_driver);
-
 }
 
 MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");