diff options
| author | Johan Hovold <jhovold@gmail.com> | 2013-03-21 12:37:45 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-25 13:54:32 -0700 |
| commit | 5ddbb26b8b571231cace9f013b2d0ae66229b316 (patch) | |
| tree | b9c15798a5be3287edfcf560d15311cb87fee697 | |
| parent | aff5b323b319758257a838cdc45f494c6674447c (diff) | |
USB: pl2303: remove disconnect test from tiocmset
Remove unnecessary disconnect test in tiocmset. No ioctls will be made
after disconnect returns.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/serial/pl2303.c | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 4dff17902fa0..7151659367a0 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -531,7 +531,6 @@ static int pl2303_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear) { struct usb_serial_port *port = tty->driver_data; - struct usb_serial *serial = port->serial; struct pl2303_private *priv = usb_get_serial_port_data(port); unsigned long flags; u8 control; @@ -549,17 +548,11 @@ static int pl2303_tiocmset(struct tty_struct *tty, control = priv->line_control; spin_unlock_irqrestore(&priv->lock, flags); - mutex_lock(&serial->disc_mutex); - if (!serial->disconnected) { - ret = pl2303_set_control_lines(port, control); - if (ret) - ret = usb_translate_errors(ret); - } else { - ret = -ENODEV; - } - mutex_unlock(&serial->disc_mutex); + ret = pl2303_set_control_lines(port, control); + if (ret) + return usb_translate_errors(ret); - return ret; + return 0; } static int pl2303_tiocmget(struct tty_struct *tty) |