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[BLUETOOTH]: Move children of connection device to NULL before connection down.

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The rfcomm tty device will possibly retain even when conn is down, and
sysfs doesn't support zombie device moving, so this patch move the tty
device before conn device is destroyed.

For the bug refered please see :
http://lkml.org/lkml/2007/12/28/87

Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dave Young
2008-01-21 22:35:21 -08:00
committed by David S. Miller
parent 667984d9e4
commit acea6852f3
2 changed files with 19 additions and 1 deletions
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net/bluetooth/rfcomm/tty.c
+2 -1
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@@ -696,7 +696,8 @@ static void rfcomm_tty_close(struct tty_struct *tty, struct file *filp)
BT_DBG("tty %p dev %p dlc %p opened %d", tty, dev, dev->dlc, dev->opened);
if (--dev->opened == 0) {
device_move(dev->tty_dev, NULL);
if (dev->tty_dev->parent)
device_move(dev->tty_dev, NULL);
/* Close DLC and dettach TTY */
rfcomm_dlc_close(dev->dlc, 0);