USB: quatech2: always disable uart on close
Always try to disable the uart on close. Since the switch to tty ports, close will be called as part of shutdown before disconnect returns. Hence there is no need to check the disconnected flag, and we can put devices in disabled states also on driver unbind. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
5ddbb26b8b
commit
81ae1b3c31
|
@ -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)
|
||||
|
|
Loading…
Reference in New Issue