USB: serial: set drain delay at port probe

The port drain delay is constant and should be set at port probe rather
than open.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c
index 75e85cb..639a18f 100644
--- a/drivers/usb/serial/f81232.c
+++ b/drivers/usb/serial/f81232.c
@@ -207,7 +207,6 @@
 		return result;
 	}
 
-	port->port.drain_delay = 256;
 	return 0;
 }
 
@@ -322,6 +321,8 @@
 
 	usb_set_serial_port_data(port, priv);
 
+	port->port.drain_delay = 256;
+
 	return 0;
 }