usb-serial: use new registration API in [d-h]* drivers

This patch (as1524) modifies the following usb-serial drivers to
utilize the new usb_serial_{de}register_drivers() routines:

	digi_acceleport, empeg, ftdi_sio, funsoft, garmin_gps,
	and hp4x.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/serial/digi_acceleport.c

@@ -276,7 +276,6 @@ static struct usb_driver digi_driver = {
 	.probe =	usb_serial_probe,
 	.disconnect =	usb_serial_disconnect,
 	.id_table =	id_table_combined,
-	.no_dynamic_id = 	1,
 };
 
 
@@ -288,7 +287,6 @@ static struct usb_serial_driver digi_acceleport_2_device = {
 		.name =			"digi_2",
 	},
 	.description =			"Digi 2 port USB adapter",
-	.usb_driver = 			&digi_driver,
 	.id_table =			id_table_2,
 	.num_ports =			3,
 	.open =				digi_open,
@@ -316,7 +314,6 @@ static struct usb_serial_driver digi_acceleport_4_device = {
 		.name =			"digi_4",
 	},
 	.description =			"Digi 4 port USB adapter",
-	.usb_driver = 			&digi_driver,
 	.id_table =			id_table_4,
 	.num_ports =			4,
 	.open =				digi_open,
@@ -337,6 +334,9 @@ static struct usb_serial_driver digi_acceleport_4_device = {
 	.release =			digi_release,
 };
 
+static struct usb_serial_driver * const serial_drivers[] = {
+	&digi_acceleport_2_device, &digi_acceleport_4_device, NULL
+};
 
 /* Functions */
 
@@ -1583,31 +1583,17 @@ static int digi_read_oob_callback(struct urb *urb)
 static int __init digi_init(void)
 {
 	int retval;
-	retval = usb_serial_register(&digi_acceleport_2_device);
-	if (retval)
-		goto failed_acceleport_2_device;
-	retval = usb_serial_register(&digi_acceleport_4_device);
-	if (retval)
-		goto failed_acceleport_4_device;
-	retval = usb_register(&digi_driver);
-	if (retval)
-		goto failed_usb_register;
-	printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
-	       DRIVER_DESC "\n");
-	return 0;
-failed_usb_register:
-	usb_serial_deregister(&digi_acceleport_4_device);
-failed_acceleport_4_device:
-	usb_serial_deregister(&digi_acceleport_2_device);
-failed_acceleport_2_device:
+
+	retval = usb_serial_register_drivers(&digi_driver, serial_drivers);
+	if (retval == 0)
+		printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
+			       DRIVER_DESC "\n");
 	return retval;
 }
 
 static void __exit digi_exit (void)
 {
-	usb_deregister(&digi_driver);
-	usb_serial_deregister(&digi_acceleport_2_device);
-	usb_serial_deregister(&digi_acceleport_4_device);
+	usb_serial_deregister_drivers(&digi_driver, serial_drivers);
 }