summaryrefslogtreecommitdiff
path: root/drivers/usb/serial/pl2303.c
diff options
context:
space:
mode:
authorJohan Hovold <jhovold@gmail.com>2013-03-21 12:37:45 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-03-25 13:54:32 -0700
commit5ddbb26b8b571231cace9f013b2d0ae66229b316 (patch)
treeb9c15798a5be3287edfcf560d15311cb87fee697 /drivers/usb/serial/pl2303.c
parentaff5b323b319758257a838cdc45f494c6674447c (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>
Diffstat (limited to 'drivers/usb/serial/pl2303.c')
-rw-r--r--drivers/usb/serial/pl2303.c15
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)