diff options
| author | Mat Martineau <mathewm@codeaurora.org> | 2011-12-07 01:23:26 +0100 |
|---|---|---|
| committer | Gustavo F. Padovan <padovan@profusion.mobi> | 2011-12-19 01:29:35 +0100 |
| commit | 79e654787c67f6b05f73366ff8ccac72ba7249e6 (patch) | |
| tree | c1a498c2af15b6df2387898ac260c84f4a4dbbd1 | |
| parent | Bluetooth: Prevent uninitialized data access in L2CAP configuration (diff) | |
| download | linux-79e654787c67f6b05f73366ff8ccac72ba7249e6.tar.xz linux-79e654787c67f6b05f73366ff8ccac72ba7249e6.zip | |
Bluetooth: Clear RFCOMM session timer when disconnecting last channel
When the last RFCOMM data channel is closed, a timer is normally set
up to disconnect the control channel at a later time. If the control
channel disconnect command is sent with the timer pending, the timer
needs to be cancelled.
If the timer is not cancelled in this situation, the reference
counting logic for the RFCOMM session does not work correctly when the
remote device closes the L2CAP connection. The session is freed at
the wrong time, leading to a kernel panic.
Signed-off-by: Mat Martineau <mathewm@codeaurora.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
| -rw-r--r-- | net/bluetooth/rfcomm/core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c index 4e32e18211f9..2d28dfe98389 100644 --- a/net/bluetooth/rfcomm/core.c +++ b/net/bluetooth/rfcomm/core.c @@ -1146,6 +1146,7 @@ static int rfcomm_recv_ua(struct rfcomm_session *s, u8 dlci) if (list_empty(&s->dlcs)) { s->state = BT_DISCONN; rfcomm_send_disc(s, 0); + rfcomm_session_clear_timer(s); } break; |