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[Bluetooth]: Call tty_hangup() when DCD is de-asserted

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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 Ters <ext-timo.teras@nokia.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Timo Ters 2005-08-09 20:28:21 -07:00 committed by David S. Miller
parent 85a1e930bf
commit 7b9eb9e209
1 changed files with 6 additions and 1 deletions
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7
net/bluetooth/rfcomm/tty.c
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@ -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) |