1 files changed, 56 insertions, 60 deletions

diff --git a/drivers/platform/x86/tc1100-wmi.c b/drivers/platform/x86/tc1100-wmi.c
index 44166003d4ef..1fe0f1feff71 100644
--- a/drivers/platform/x86/tc1100-wmi.c
+++ b/drivers/platform/x86/tc1100-wmi.c
@@ -27,6 +27,7 @@
 
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <acpi/acpi.h>
@@ -47,22 +48,6 @@ MODULE_DESCRIPTION("HP Compaq TC1100 Tablet WMI Extras");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("wmi:C364AC71-36DB-495A-8494-B439D472A505");
 
-static int tc1100_probe(struct platform_device *device);
-static int tc1100_remove(struct platform_device *device);
-static int tc1100_suspend(struct platform_device *device, pm_message_t state);
-static int tc1100_resume(struct platform_device *device);
-
-static struct platform_driver tc1100_driver = {
-        .driver = {
-                .name = "tc1100-wmi",
-                .owner = THIS_MODULE,
-        },
-        .probe = tc1100_probe,
-        .remove = tc1100_remove,
-        .suspend = tc1100_suspend,
-        .resume = tc1100_resume,
-};
-
 static struct platform_device *tc1100_device;
 
 struct tc1100_data {
@@ -183,51 +168,35 @@ static DEVICE_ATTR(value, S_IWUGO | S_IRUGO | S_IWUSR, \
 show_set_bool(wireless, TC1100_INSTANCE_WIRELESS);
 show_set_bool(jogdial, TC1100_INSTANCE_JOGDIAL);
 
-static void remove_fs(void)
-{
-        device_remove_file(&tc1100_device->dev, &dev_attr_wireless);
-        device_remove_file(&tc1100_device->dev, &dev_attr_jogdial);
-}
-
-static int add_fs(void)
-{
-        int ret;
-
-        ret = device_create_file(&tc1100_device->dev, &dev_attr_wireless);
-        if (ret)
-                goto add_sysfs_error;
-
-        ret = device_create_file(&tc1100_device->dev, &dev_attr_jogdial);
-        if (ret)
-                goto add_sysfs_error;
-
-        return ret;
+static struct attribute *tc1100_attributes[] = {
+        &dev_attr_wireless.attr,
+        &dev_attr_jogdial.attr,
+        NULL
+};
 
-add_sysfs_error:
-        remove_fs();
-        return ret;
-}
+static struct attribute_group tc1100_attribute_group = {
+        .attrs  = tc1100_attributes,
+};
 
 /* --------------------------------------------------------------------------
                                 Driver Model
    -------------------------------------------------------------------------- */
 
-static int tc1100_probe(struct platform_device *device)
+static int __init tc1100_probe(struct platform_device *device)
 {
-        int result = 0;
-
-        result = add_fs();
-        return result;
+        return sysfs_create_group(&device->dev.kobj, &tc1100_attribute_group);
 }
 
 
-static int tc1100_remove(struct platform_device *device)
+static int __devexit tc1100_remove(struct platform_device *device)
 {
-        remove_fs();
+        sysfs_remove_group(&device->dev.kobj, &tc1100_attribute_group);
+
         return 0;
 }
 
-static int tc1100_suspend(struct platform_device *dev, pm_message_t state)
+#ifdef CONFIG_PM
+static int tc1100_suspend(struct device *dev)
 {
         int ret;
 
@@ -239,10 +208,10 @@ static int tc1100_suspend(struct platform_device *dev, pm_message_t state)
         if (ret)
                 return ret;
 
-        return ret;
+        return 0;
 }
 
-static int tc1100_resume(struct platform_device *dev)
+static int tc1100_resume(struct device *dev)
 {
         int ret;
 
@@ -254,34 +223,61 @@ static int tc1100_resume(struct platform_device *dev)
         if (ret)
                 return ret;
 
-        return ret;
+        return 0;
 }
 
+static const struct dev_pm_ops tc1100_pm_ops = {
+        .suspend        = tc1100_suspend,
+        .resume         = tc1100_resume,
+        .freeze         = tc1100_suspend,
+        .restore        = tc1100_resume,
+};
+#endif
+
+static struct platform_driver tc1100_driver = {
+        .driver = {
+                .name = "tc1100-wmi",
+                .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+                .pm = &tc1100_pm_ops,
+#endif
+        },
+        .remove = __devexit_p(tc1100_remove),
+};
+
 static int __init tc1100_init(void)
 {
-        int result = 0;
+        int error;
 
         if (!wmi_has_guid(GUID))
                 return -ENODEV;
 
-        result = platform_driver_register(&tc1100_driver);
-        if (result)
-                return result;
-
         tc1100_device = platform_device_alloc("tc1100-wmi", -1);
-        platform_device_add(tc1100_device);
+        if (!tc1100_device)
+                return -ENOMEM;
+
+        error = platform_device_add(tc1100_device);
+        if (error)
+                goto err_device_put;
+
+        error = platform_driver_probe(&tc1100_driver, tc1100_probe);
+        if (error)
+                goto err_device_del;
 
         printk(TC1100_INFO "HP Compaq TC1100 Tablet WMI Extras loaded\n");
+        return 0;
 
-        return result;
+ err_device_del:
+        platform_device_del(tc1100_device);
+ err_device_put:
+        platform_device_put(tc1100_device);
+        return error;
 }
 
 static void __exit tc1100_exit(void)
 {
-        platform_device_del(tc1100_device);
+        platform_device_unregister(tc1100_device);
         platform_driver_unregister(&tc1100_driver);
-
-        printk(TC1100_INFO "HP Compaq TC1100 Tablet WMI Extras unloaded\n");
 }
 
 module_init(tc1100_init);