HID: Use module_hid_driver macro

Use the new module_hid_driver macro in all HID drivers that have
a simple register/unregister init/exit.

This also converts the hid drivers that test for a failure of
hid_register_driver() and report the failure. Using module_hid_driver
in those drivers removes the failure message.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c
index 25ddf3e..f7f113b 100644
--- a/drivers/hid/hid-magicmouse.c
+++ b/drivers/hid/hid-magicmouse.c
@@ -569,23 +569,6 @@
 	.raw_event = magicmouse_raw_event,
 	.input_mapping = magicmouse_input_mapping,
 };
+module_hid_driver(magicmouse_driver);
 
-static int __init magicmouse_init(void)
-{
-	int ret;
-
-	ret = hid_register_driver(&magicmouse_driver);
-	if (ret)
-		pr_err("can't register magicmouse driver\n");
-
-	return ret;
-}
-
-static void __exit magicmouse_exit(void)
-{
-	hid_unregister_driver(&magicmouse_driver);
-}
-
-module_init(magicmouse_init);
-module_exit(magicmouse_exit);
 MODULE_LICENSE("GPL");