diff options
Diffstat (limited to 'drivers/usb/serial/cypress_m8.c')
| -rw-r--r-- | drivers/usb/serial/cypress_m8.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index e4a62cfc4081..d341555d37d8 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -632,12 +632,6 @@ static void cypress_close(struct usb_serial_port *port) struct cypress_private *priv = usb_get_serial_port_data(port); unsigned long flags; - /* writing is potentially harmful, lock must be taken */ - mutex_lock(&port->serial->disc_mutex); - if (port->serial->disconnected) { - mutex_unlock(&port->serial->disc_mutex); - return; - } spin_lock_irqsave(&priv->lock, flags); kfifo_reset_out(&priv->write_fifo); spin_unlock_irqrestore(&priv->lock, flags); @@ -649,7 +643,6 @@ static void cypress_close(struct usb_serial_port *port) if (stats) dev_info(&port->dev, "Statistics: %d Bytes In | %d Bytes Out | %d Commands Issued\n", priv->bytes_in, priv->bytes_out, priv->cmd_count); - mutex_unlock(&port->serial->disc_mutex); } /* cypress_close */ |