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/pl2303.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 1f7fd1a..997eba4 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -607,7 +607,7 @@ static int pl2303_tiocmiwait(struct tty_struct *tty, unsigned long arg) spin_unlock_irqrestore(&priv->lock, flags); while (1) { - interruptible_sleep_on(&port->delta_msr_wait); + interruptible_sleep_on(&port->port.delta_msr_wait); /* see if a signal did it */ if (signal_pending(current)) return -ERESTARTSYS; @@ -718,7 +718,7 @@ static void pl2303_update_line_status(struct usb_serial_port *port, spin_unlock_irqrestore(&priv->lock, flags); if (priv->line_status & UART_BREAK_ERROR) usb_serial_handle_break(port); - wake_up_interruptible(&port->delta_msr_wait); + wake_up_interruptible(&port->port.delta_msr_wait); tty = tty_port_tty_get(&port->port); if (!tty) @@ -782,7 +782,7 @@ static void pl2303_process_read_urb(struct urb *urb) line_status = priv->line_status; priv->line_status &= ~UART_STATE_TRANSIENT_MASK; spin_unlock_irqrestore(&priv->lock, flags); - wake_up_interruptible(&port->delta_msr_wait); + wake_up_interruptible(&port->port.delta_msr_wait); if (!urb->actual_length) return; -- 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
