diff options
Diffstat (limited to 'drivers/usb/serial')
-rw-r--r-- | drivers/usb/serial/generic.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index 1f31e6b..3a5dac8 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -570,6 +570,16 @@ void usb_serial_handle_dcd_change(struct usb_serial_port *usb_port, dev_dbg(&usb_port->dev, "%s - status %d\n", __func__, status); + if (tty) { + struct tty_ldisc *ld = tty_ldisc_ref(tty); + + if (ld) { + if (ld->ops->dcd_change) + ld->ops->dcd_change(tty, status); + tty_ldisc_deref(ld); + } + } + if (status) wake_up_interruptible(&port->open_wait); else if (tty && !C_CLOCAL(tty)) |