TTY: add tty_port_tty_hangup helper

[karo-tx-linux.git] / drivers / usb / serial / option.c

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index f7d339d8187bd690b86b22ccf85b740781257226..602d1f389a3b6f48a8caa7d9979035f9a0233056 100644 (file)
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1532,13 +1532,8 @@ static void option_instat_callback(struct urb *urb)
                        portdata->dsr_state = ((signals & 0x02) ? 1 : 0);
                        portdata->ri_state = ((signals & 0x08) ? 1 : 0);
 
-                       if (old_dcd_state && !portdata->dcd_state) {
-                               struct tty_struct *tty =
-                                               tty_port_tty_get(&port->port);
-                               if (tty && !C_CLOCAL(tty))
-                                       tty_hangup(tty);
-                               tty_kref_put(tty);
-                       }
+                       if (old_dcd_state && !portdata->dcd_state)
+                               tty_port_tty_hangup(&port->port, true);
                } else {
                        dev_dbg(dev, "%s: type %x req %x\n", __func__,
                                req_pkt->bRequestType, req_pkt->bRequest);