diff options
| author | Johan Hovold <jhovold@gmail.com> | 2013-03-21 12:37:37 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-25 21:54:30 +0100 |
| commit | 87ddf4dc16d93db92431d57c4b2fcd640f428228 (patch) | |
| tree | 8f94e1602061050ddd58b4455c86309f6b148ad6 /drivers/usb/serial/cypress_m8.c | |
| parent | USB: cp210x: always disable uart on close (diff) | |
| download | linux-87ddf4dc16d93db92431d57c4b2fcd640f428228.tar.xz linux-87ddf4dc16d93db92431d57c4b2fcd640f428228.zip | |
USB: cypress_m8: remove bogus disconnect test from close
Remove disconnected test from close which did not protect any device IO
at all.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 */ |