USB: oti6858: fix TIOCMIWAIT and disconnect

Use tty-port modem-status-change wait queue on which processes are woken
up at hangup and disconnect.

Currently a process waiting on modem-status changes will not be woken on
device disconnect.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c
index fd5dcb8..7e3e078 100644 (file)
--- a/drivers/usb/serial/oti6858.c
+++ b/drivers/usb/serial/oti6858.c
@@ -662,7 +662,7 @@ static int oti6858_tiocmiwait(struct tty_struct *tty, unsigned long arg)
        spin_unlock_irqrestore(&priv->lock, flags);
 
        while (1) {
-               wait_event_interruptible(port->delta_msr_wait,
+               wait_event_interruptible(port->port.delta_msr_wait,
                                        port->serial->disconnected ||
                                        priv->status.pin_state != prev);
                if (signal_pending(current))
@@ -747,7 +747,7 @@ static void oti6858_read_int_callback(struct urb *urb)
 
                if (!priv->transient) {
                        if (xs->pin_state != priv->status.pin_state)
-                               wake_up_interruptible(&port->delta_msr_wait);
+                               wake_up_interruptible(&port->port.delta_msr_wait);
                        memcpy(&priv->status, xs, OTI6858_CTRL_PKT_SIZE);
                }