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Diffstat (limited to 'drivers/usb/serial/quatech2.c')
| -rw-r--r-- | drivers/usb/serial/quatech2.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c index 085cad471c41..3c278521f7e2 100644 --- a/drivers/usb/serial/quatech2.c +++ b/drivers/usb/serial/quatech2.c @@ -422,12 +422,6 @@ static void qt2_close(struct usb_serial_port *port) port_priv->urb_in_use = false; spin_unlock_irqrestore(&port_priv->urb_lock, flags); - mutex_lock(&port->serial->disc_mutex); - if (port->serial->disconnected) { - mutex_unlock(&port->serial->disc_mutex); - return; - } - /* flush the port transmit buffer */ i = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), @@ -458,8 +452,6 @@ static void qt2_close(struct usb_serial_port *port) if (i < 0) dev_err(&port->dev, "%s - close port failed %i\n", __func__, i); - - mutex_unlock(&port->serial->disc_mutex); } static void qt2_disconnect(struct usb_serial *serial) |