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-ntrig.c b/drivers/hid/hid-ntrig.c
index 86a969f..2ffc0e3 100644
--- a/drivers/hid/hid-ntrig.c
+++ b/drivers/hid/hid-ntrig.c
@@ -1026,17 +1026,6 @@
 	.usage_table = ntrig_grabbed_usages,
 	.event = ntrig_event,
 };
+module_hid_driver(ntrig_driver);
 
-static int __init ntrig_init(void)
-{
-	return hid_register_driver(&ntrig_driver);
-}
-
-static void __exit ntrig_exit(void)
-{
-	hid_unregister_driver(&ntrig_driver);
-}
-
-module_init(ntrig_init);
-module_exit(ntrig_exit);
 MODULE_LICENSE("GPL");