Remove disconnected test from close which did not protect any device IO
at all.
Signed-off-by: Johan Hovold <jhov...@gmail.com>
---
drivers/usb/serial/cypress_m8.c | 7 -------
1 file changed, 7 deletions(-)
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index 23b77eb..f6a7d88 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -636,12 +636,6 @@ 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);
@@ -653,7 +647,6 @@ 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 */
--
1.8.1.1
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