USB: quatech2: fix close and disconnect urb handling

Kill urbs unconditionally at close and disconnect.

Note that URB status is not valid outside of completion handler.

Cc: <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/serial/quatech2.c

@@ -423,8 +423,7 @@ static void qt2_close(struct usb_serial_port *port)
 	port_priv->is_open = false;
 
 	spin_lock_irqsave(&port_priv->urb_lock, flags);
-	if (port_priv->write_urb->status == -EINPROGRESS)
-		usb_kill_urb(port_priv->write_urb);
+	usb_kill_urb(port_priv->write_urb);
 	port_priv->urb_in_use = false;
 	spin_unlock_irqrestore(&port_priv->urb_lock, flags);
 
@@ -465,8 +464,7 @@ static void qt2_disconnect(struct usb_serial *serial)
 {
 	struct qt2_serial_private *serial_priv = usb_get_serial_data(serial);
 
-	if (serial_priv->read_urb->status == -EINPROGRESS)
-		usb_kill_urb(serial_priv->read_urb);
+	usb_kill_urb(serial_priv->read_urb);
 }
 
 static int get_serial_info(struct usb_serial_port *port,