From 7b9eb9e2099f6f4acd6a36bcd7820d27c3cf5ee3 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Timo=20Ter=E4s?= Date: Tue, 9 Aug 2005 20:28:21 -0700 Subject: [PATCH] [Bluetooth]: Call tty_hangup() when DCD is de-asserted MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The RFCOMM layer does not handle properly the de-assertation of CD signal. It should call tty_hangup() to work properly. Signed-off-by: Timo Teräs Signed-off-by: Marcel Holtmann Signed-off-by: David S. Miller --- net/bluetooth/rfcomm/tty.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c index 6304590fd36a..67d9dd6b0fac 100644 --- a/net/bluetooth/rfcomm/tty.c +++ b/net/bluetooth/rfcomm/tty.c @@ -528,9 +528,14 @@ static void rfcomm_dev_modem_status(struct rfcomm_dlc *dlc, u8 v24_sig) struct rfcomm_dev *dev = dlc->owner; if (!dev) return; - + BT_DBG("dlc %p dev %p v24_sig 0x%02x", dlc, dev, v24_sig); + if ((dev->modem_status & TIOCM_CD) && !(v24_sig & RFCOMM_V24_DV)) { + if (dev->tty && !C_CLOCAL(dev->tty)) + tty_hangup(dev->tty); + } + dev->modem_status = ((v24_sig & RFCOMM_V24_RTC) ? (TIOCM_DSR | TIOCM_DTR) : 0) | ((v24_sig & RFCOMM_V24_RTR) ? (TIOCM_RTS | TIOCM_CTS) : 0) | -- 2.20.1