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-twinhan.c b/drivers/hid/hid-twinhan.c
index f23456b..c08c364 100644
--- a/drivers/hid/hid-twinhan.c
+++ b/drivers/hid/hid-twinhan.c
@@ -131,17 +131,6 @@
 	.id_table = twinhan_devices,
 	.input_mapping = twinhan_input_mapping,
 };
+module_hid_driver(twinhan_driver);
 
-static int __init twinhan_init(void)
-{
-	return hid_register_driver(&twinhan_driver);
-}
-
-static void __exit twinhan_exit(void)
-{
-	hid_unregister_driver(&twinhan_driver);
-}
-
-module_init(twinhan_init);
-module_exit(twinhan_exit);
 MODULE_LICENSE("GPL");