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Commit 7b9eb9e2 authored by Timo Teräs's avatar Timo Teräs Committed by David S. Miller
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[Bluetooth]: Call tty_hangup() when DCD is de-asserted 



The RFCOMM layer does not handle properly the de-assertation
of CD signal. It should call tty_hangup() to work properly.

Signed-off-by: default avatarTimo Ters <ext-timo.teras@nokia.com>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 85a1e930

net/bluetooth/rfcomm/tty.c

+6 −1
Original line number Diff line number Diff line
@@ -531,6 +531,11 @@ static void rfcomm_dev_modem_status(struct rfcomm_dlc *dlc, u8 v24_sig) 


	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) |