diff options
| author | Dave Young <hidave.darkstar@gmail.com> | 2009-10-18 20:28:30 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-10-19 19:36:49 -0700 |
| commit | 45054dc1bf2367ccb0e7c0486037907cd9395f8b (patch) | |
| tree | a2dbc61975f169bd841a012d159210c69024c317 /block/genhd.c | |
| parent | f74c77cb1124a11acf69c98d10c0fdc22f322664 (diff) | |
bluetooth: static lock key fix
When shutdown ppp connection, lockdep waring about non-static key
will happen, it is caused by the lock is not initialized properly
at that time.
Fix with tuning the lock/skb_queue_head init order
[ 94.339261] INFO: trying to register non-static key.
[ 94.342509] the code is fine but needs lockdep annotation.
[ 94.342509] turning off the locking correctness validator.
[ 94.342509] Pid: 0, comm: swapper Not tainted 2.6.31-mm1 #2
[ 94.342509] Call Trace:
[ 94.342509] [<c0248fbe>] register_lock_class+0x58/0x241
[ 94.342509] [<c024b5df>] ? __lock_acquire+0xb57/0xb73
[ 94.342509] [<c024ab34>] __lock_acquire+0xac/0xb73
[ 94.342509] [<c024b7fa>] ? lock_release_non_nested+0x17b/0x1de
[ 94.342509] [<c024b662>] lock_acquire+0x67/0x84
[ 94.342509] [<c04cd1eb>] ? skb_dequeue+0x15/0x41
[ 94.342509] [<c054a857>] _spin_lock_irqsave+0x2f/0x3f
[ 94.342509] [<c04cd1eb>] ? skb_dequeue+0x15/0x41
[ 94.342509] [<c04cd1eb>] skb_dequeue+0x15/0x41
[ 94.342509] [<c054a648>] ? _read_unlock+0x1d/0x20
[ 94.342509] [<c04cd641>] skb_queue_purge+0x14/0x1b
[ 94.342509] [<fab94fdc>] l2cap_recv_frame+0xea1/0x115a [l2cap]
[ 94.342509] [<c024b5df>] ? __lock_acquire+0xb57/0xb73
[ 94.342509] [<c0249c04>] ? mark_lock+0x1e/0x1c7
[ 94.342509] [<f8364963>] ? hci_rx_task+0xd2/0x1bc [bluetooth]
[ 94.342509] [<fab95346>] l2cap_recv_acldata+0xb1/0x1c6 [l2cap]
[ 94.342509] [<f8364997>] hci_rx_task+0x106/0x1bc [bluetooth]
[ 94.342509] [<fab95295>] ? l2cap_recv_acldata+0x0/0x1c6 [l2cap]
[ 94.342509] [<c02302c4>] tasklet_action+0x69/0xc1
[ 94.342509] [<c022fbef>] __do_softirq+0x94/0x11e
[ 94.342509] [<c022fcaf>] do_softirq+0x36/0x5a
[ 94.342509] [<c022fe14>] irq_exit+0x35/0x68
[ 94.342509] [<c0204ced>] do_IRQ+0x72/0x89
[ 94.342509] [<c02038ee>] common_interrupt+0x2e/0x34
[ 94.342509] [<c024007b>] ? pm_qos_add_requirement+0x63/0x9d
[ 94.342509] [<c038e8a5>] ? acpi_idle_enter_bm+0x209/0x238
[ 94.342509] [<c049d238>] cpuidle_idle_call+0x5c/0x94
[ 94.342509] [<c02023f8>] cpu_idle+0x4e/0x6f
[ 94.342509] [<c0534153>] rest_init+0x53/0x55
[ 94.342509] [<c0781894>] start_kernel+0x2f0/0x2f5
[ 94.342509] [<c0781091>] i386_start_kernel+0x91/0x96
Reported-by: Oliver Hartkopp <oliver@hartkopp.net>
Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Tested-by: Oliver Hartkopp <oliver@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'block/genhd.c')
0 files changed, 0 insertions, 0 deletions