USB: serial: aircable.c: use module_usb_serial_driver

This converts the aircable.c driver to use the module_usb_serial_driver() call
instead of having to have a module_init/module_exit function, saving a lot
of duplicated code.

CC: Paul Gortmaker <paul.gortmaker@windriver.com>
CC: Lucas De Marchi <lucas.demarchi@profusion.mobi>
CC: Rusty Russell <rusty@rustcorp.com.au>
CC: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/serial/aircable.c

@@ -196,23 +196,12 @@ static struct usb_serial_driver * const serial_drivers[] = {
 	&aircable_device, NULL
 };
 
-static int __init aircable_init(void)
-{
-	return usb_serial_register_drivers(&aircable_driver, serial_drivers);
-}
-
-static void __exit aircable_exit(void)
-{
-	usb_serial_deregister_drivers(&aircable_driver, serial_drivers);
-}
+module_usb_serial_driver(aircable_driver, serial_drivers);
 
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_VERSION(DRIVER_VERSION);
 MODULE_LICENSE("GPL");
 
-module_init(aircable_init);
-module_exit(aircable_exit);
-
 module_param(debug, bool, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(debug, "Debug enabled or not");