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authorAndrei Emeltchenko <andrei.emeltchenko@intel.com>2012-09-06 15:05:42 +0300
committerGustavo Padovan <gustavo.padovan@collabora.co.uk>2012-09-18 20:07:04 -0300
commitaad3d0e343900a4c2c5dbc73f76550aa64a0ac1b (patch)
treef5cde6e3a1f20ef7af76abfcc7f63a45cd32c166 /net/bluetooth
parent562fcc246ebe31ade6e1be08585673b9b2785498 (diff)
downloadlinux-aad3d0e343900a4c2c5dbc73f76550aa64a0ac1b.tar.bz2
Bluetooth: Fix freeing uninitialized delayed works
When releasing L2CAP socket which is in BT_CONFIG state l2cap_chan_close invokes l2cap_send_disconn_req which cancel delayed works which are only set in BT_CONNECTED state with l2cap_ertm_init. Add state check before cancelling those works. ... [ 9668.574372] [21085] l2cap_sock_release: sock cd065200, sk f073e800 [ 9668.574399] [21085] l2cap_sock_shutdown: sock cd065200, sk f073e800 [ 9668.574411] [21085] l2cap_chan_close: chan f073ec00 state BT_CONFIG sk f073e800 [ 9668.574421] [21085] l2cap_send_disconn_req: chan f073ec00 conn ecc16600 [ 9668.574441] INFO: trying to register non-static key. [ 9668.574443] the code is fine but needs lockdep annotation. [ 9668.574446] turning off the locking correctness validator. [ 9668.574450] Pid: 21085, comm: obex-client Tainted: G O 3.5.0+ #57 [ 9668.574452] Call Trace: [ 9668.574463] [<c10a64b3>] __lock_acquire+0x12e3/0x1700 [ 9668.574468] [<c10a44fb>] ? trace_hardirqs_on+0xb/0x10 [ 9668.574476] [<c15e4f60>] ? printk+0x4d/0x4f [ 9668.574479] [<c10a6e38>] lock_acquire+0x88/0x130 [ 9668.574487] [<c1059740>] ? try_to_del_timer_sync+0x60/0x60 [ 9668.574491] [<c1059790>] del_timer_sync+0x50/0xc0 [ 9668.574495] [<c1059740>] ? try_to_del_timer_sync+0x60/0x60 [ 9668.574515] [<f8aa1c23>] l2cap_send_disconn_req+0xe3/0x160 [bluetooth] ... Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/l2cap_core.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 4ea1710a4783..38c00f142203 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1008,7 +1008,7 @@ static void l2cap_send_disconn_req(struct l2cap_conn *conn, struct l2cap_chan *c
if (!conn)
return;
- if (chan->mode == L2CAP_MODE_ERTM) {
+ if (chan->mode == L2CAP_MODE_ERTM && chan->state == BT_CONNECTED) {
__clear_retrans_timer(chan);
__clear_monitor_timer(chan);
__clear_ack_timer(chan);