ideapad: pass ideapad_priv as argument (part 1)

Passing ideapad_priv as argument and try not to using too much global variable.
This is part 1 for platform driver and input device.

Signed-off-by: Ike Panhc <ike.pan@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>

diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 3c6c5b5..37fe0d0 100644 (file)
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -301,37 +301,37 @@ static struct attribute_group ideapad_attribute_group = {
        .attrs = ideapad_attributes
 };
 
-static int __devinit ideapad_platform_init(void)
+static int __devinit ideapad_platform_init(struct ideapad_private *priv)
 {
        int result;
 
-       ideapad_priv->platform_device = platform_device_alloc("ideapad", -1);
-       if (!ideapad_priv->platform_device)
+       priv->platform_device = platform_device_alloc("ideapad", -1);
+       if (!priv->platform_device)
                return -ENOMEM;
-       platform_set_drvdata(ideapad_priv->platform_device, ideapad_priv);
+       platform_set_drvdata(priv->platform_device, priv);
 
-       result = platform_device_add(ideapad_priv->platform_device);
+       result = platform_device_add(priv->platform_device);
        if (result)
                goto fail_platform_device;
 
-       result = sysfs_create_group(&ideapad_priv->platform_device->dev.kobj,
+       result = sysfs_create_group(&priv->platform_device->dev.kobj,
                                    &ideapad_attribute_group);
        if (result)
                goto fail_sysfs;
        return 0;
 
 fail_sysfs:
-       platform_device_del(ideapad_priv->platform_device);
+       platform_device_del(priv->platform_device);
 fail_platform_device:
-       platform_device_put(ideapad_priv->platform_device);
+       platform_device_put(priv->platform_device);
        return result;
 }
 
-static void ideapad_platform_exit(void)
+static void ideapad_platform_exit(struct ideapad_private *priv)
 {
-       sysfs_remove_group(&ideapad_priv->platform_device->dev.kobj,
+       sysfs_remove_group(&priv->platform_device->dev.kobj,
                           &ideapad_attribute_group);
-       platform_device_unregister(ideapad_priv->platform_device);
+       platform_device_unregister(priv->platform_device);
 }
 
 /*
@@ -343,7 +343,7 @@ static const struct key_entry ideapad_keymap[] = {
        { KE_END, 0 },
 };
 
-static int __devinit ideapad_input_init(void)
+static int __devinit ideapad_input_init(struct ideapad_private *priv)
 {
        struct input_dev *inputdev;
        int error;
@@ -357,7 +357,7 @@ static int __devinit ideapad_input_init(void)
        inputdev->name = "Ideapad extra buttons";
        inputdev->phys = "ideapad/input0";
        inputdev->id.bustype = BUS_HOST;
-       inputdev->dev.parent = &ideapad_priv->platform_device->dev;
+       inputdev->dev.parent = &priv->platform_device->dev;
 
        error = sparse_keymap_setup(inputdev, ideapad_keymap, NULL);
        if (error) {
@@ -371,7 +371,7 @@ static int __devinit ideapad_input_init(void)
                goto err_free_keymap;
        }
 
-       ideapad_priv->inputdev = inputdev;
+       priv->inputdev = inputdev;
        return 0;
 
 err_free_keymap:
@@ -381,16 +381,17 @@ err_free_dev:
        return error;
 }
 
-static void __devexit ideapad_input_exit(void)
+static void __devexit ideapad_input_exit(struct ideapad_private *priv)
 {
-       sparse_keymap_free(ideapad_priv->inputdev);
-       input_unregister_device(ideapad_priv->inputdev);
-       ideapad_priv->inputdev = NULL;
+       sparse_keymap_free(priv->inputdev);
+       input_unregister_device(priv->inputdev);
+       priv->inputdev = NULL;
 }
 
-static void ideapad_input_report(unsigned long scancode)
+static void ideapad_input_report(struct ideapad_private *priv,
+                                unsigned long scancode)
 {
-       sparse_keymap_report_event(ideapad_priv->inputdev, scancode, 1, true);
+       sparse_keymap_report_event(priv->inputdev, scancode, 1, true);
 }
 
 /*
@@ -417,11 +418,11 @@ static int __devinit ideapad_acpi_add(struct acpi_device *adevice)
        priv->handle = adevice->handle;
        dev_set_drvdata(&adevice->dev, priv);
 
-       ret = ideapad_platform_init();
+       ret = ideapad_platform_init(priv);
        if (ret)
                goto platform_failed;
 
-       ret = ideapad_input_init();
+       ret = ideapad_input_init(priv);
        if (ret)
                goto input_failed;
 
@@ -434,7 +435,7 @@ static int __devinit ideapad_acpi_add(struct acpi_device *adevice)
        return 0;
 
 input_failed:
-       ideapad_platform_exit();
+       ideapad_platform_exit(priv);
 platform_failed:
        kfree(priv);
        return ret;
@@ -447,8 +448,8 @@ static int __devexit ideapad_acpi_remove(struct acpi_device *adevice, int type)
 
        for (i = IDEAPAD_DEV_WLAN; i < IDEAPAD_DEV_KILLSW; i++)
                ideapad_unregister_rfkill(adevice, i);
-       ideapad_input_exit();
-       ideapad_platform_exit();
+       ideapad_input_exit(priv);
+       ideapad_platform_exit(priv);
        dev_set_drvdata(&adevice->dev, NULL);
        kfree(priv);
 
@@ -457,6 +458,7 @@ static int __devexit ideapad_acpi_remove(struct acpi_device *adevice, int type)
 
 static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
 {
+       struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
        acpi_handle handle = adevice->handle;
        unsigned long vpc1, vpc2, vpc_bit;
 
@@ -471,7 +473,7 @@ static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
                        if (vpc_bit == 9)
                                ideapad_sync_rfk_state(adevice);
                        else
-                               ideapad_input_report(vpc_bit);
+                               ideapad_input_report(priv, vpc_bit);
                }
        }
 }