3.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Fabian Godehardt <redacted>

commit 8582d86143c690c68cc42f996def466a035bee34 upstream.

The allocated chardevice region range is only 1 device but on
unregister it currently tries to deregister 2.

Found this while doing a insmod/rmmod/insmod/rm... of the module
which seemed to eat major numbers.

Signed-off-by: Fabian Godehardt <redacted>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/gadget/printer.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/gadget/printer.c
+++ b/drivers/usb/gadget/printer.c

@@ -1611,7 +1611,7 @@ cleanup(void)
 	if (status)
 		ERROR(dev, "usb_gadget_unregister_driver %x\n", status);
 
-	unregister_chrdev_region(g_printer_devno, 2);
+	unregister_chrdev_region(g_printer_devno, 1);
 	class_destroy(usb_gadget_class);
 	mutex_unlock(&usb_printer_gadget.lock_printer_io);
 }