1. Add markups on init and exit functions
2. Unify the comments in the same style
3. Return result when module initial

Signed-off-by: Ike Panhc <[email protected]>
---
 drivers/platform/x86/ideapad-laptop.c |   29 +++++++++++++++--------------
 1 files changed, 15 insertions(+), 14 deletions(-)

diff --git a/drivers/platform/x86/ideapad-laptop.c 
b/drivers/platform/x86/ideapad-laptop.c
index fdb5fde..2c4830c 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 <[email protected]>
@@ -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 +240,7 @@ 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 +276,7 @@ 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 +331,6 @@ 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 +390,17 @@ 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 +438,7 @@ 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 +484,14 @@ 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 <[email protected]>");
-- 
1.7.1

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