1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 61eef18218be..d0a2e464cacd 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -276,7 +276,7 @@ static int usb_serial_generic_write_start(struct usb_serial_port *port)
         if (port->write_urb_busy)
                 start_io = false;
         else {
-                start_io = (__kfifo_len(port->write_fifo) != 0);
+                start_io = (kfifo_len(port->write_fifo) != 0);
                 port->write_urb_busy = start_io;
         }
         spin_unlock_irqrestore(&port->lock, flags);
@@ -370,7 +370,7 @@ int usb_serial_generic_write_room(struct tty_struct *tty)
                                 (serial->type->max_in_flight_urbs -
                                  port->urbs_in_flight);
         } else if (serial->num_bulk_out)
-                room = port->write_fifo->size - __kfifo_len(port->write_fifo);
+                room = port->write_fifo->size - kfifo_len(port->write_fifo);
         spin_unlock_irqrestore(&port->lock, flags);
 
         dbg("%s - returns %d", __func__, room);