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 <[email protected]> --- drivers/usb/serial/oti6858.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c index fd5dcb8..7e3e078 100644 --- 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); } -- 1.8.1.5 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
