asus_acpi: fix oops on non-asus machines

[firefly-linux-kernel-4.4.55.git] / drivers / acpi / asus_acpi.c

diff --git a/drivers/acpi/asus_acpi.c b/drivers/acpi/asus_acpi.c
index b770deab968c492322eaee25c2cbd84f0c4b92fb..3cd79caad70c5c56f1da00ea016109e0b940e1d1 100644 (file)
--- a/drivers/acpi/asus_acpi.c
+++ b/drivers/acpi/asus_acpi.c
@@ -1357,7 +1357,7 @@ static struct backlight_ops asus_backlight_data = {
         .update_status  = set_brightness_status,
 };
 
-static void __exit asus_acpi_exit(void)
+static void asus_acpi_exit(void)
 {
        if (asus_backlight_device)
                backlight_device_unregister(asus_backlight_device);
@@ -1398,7 +1398,7 @@ static int __init asus_acpi_init(void)
        if (!asus_hotk_found) {
                acpi_bus_unregister_driver(&asus_hotk_driver);
                remove_proc_entry(PROC_ASUS, acpi_root_dir);
-               return result;
+               return -ENODEV;
        }
 
        asus_backlight_device = backlight_device_register("asus",NULL,NULL,
@@ -1407,6 +1407,7 @@ static int __init asus_acpi_init(void)
                printk(KERN_ERR "Could not register asus backlight device\n");
                asus_backlight_device = NULL;
                asus_acpi_exit();
+               return -ENODEV;
        }
         asus_backlight_device->props.max_brightness = 15;