USB: serial: refactor generic close

Export usb_serial_generic_close so that drivers can easily kill the read
and write urb and make sure that the write fifo is reset.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 5 deletions

diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index 9b66bf19f751..0ae610efa23d 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -355,14 +355,11 @@ static void ark3116_close(struct usb_serial_port *port)
                 /* deactivate interrupts */
                 ark3116_write_reg(serial, UART_IER, 0);
 
-                /* shutdown any bulk reads that might be going on */
-                if (serial->num_bulk_out)
-                        usb_kill_urb(port->write_urb);
-                if (serial->num_bulk_in)
-                        usb_kill_urb(port->read_urb);
+                usb_serial_generic_close(port);
                 if (serial->num_interrupt_in)
                         usb_kill_urb(port->interrupt_in_urb);
         }
+
 }
 
 static int ark3116_open(struct tty_struct *tty, struct usb_serial_port *port)