summaryrefslogtreecommitdiffstats
path: root/net/bluetooth
diff options
context:
space:
mode:
authorGustavo Padovan <gustavo.padovan@collabora.co.uk>2012-11-21 00:50:21 -0200
committerGustavo Padovan <gustavo.padovan@collabora.co.uk>2012-12-03 15:59:43 -0200
commitb9b5ef188e5a2222cfc16ef62a4703080750b451 (patch)
treea1379f88dc72de55bd05cf961952ebdf6ca08496 /net/bluetooth
parentdc2a0e20fbc85a71c63aa4330b496fda33f6bf80 (diff)
downloadop-kernel-dev-b9b5ef188e5a2222cfc16ef62a4703080750b451.zip
op-kernel-dev-b9b5ef188e5a2222cfc16ef62a4703080750b451.tar.gz
Bluetooth: cancel power_on work when unregistering the device
We need to cancel the hci_power_on work in order to avoid it run when we try to free the hdev. [ 1434.201149] ------------[ cut here ]------------ [ 1434.204998] WARNING: at lib/debugobjects.c:261 debug_print_object+0x8e/0xb0() [ 1434.208324] ODEBUG: free active (active state 0) object type: work_struct hint: hci _power_on+0x0/0x90 [ 1434.210386] Pid: 8564, comm: trinity-child25 Tainted: G W 3.7.0-rc5-next- 20121112-sasha-00018-g2f4ce0e #127 [ 1434.210760] Call Trace: [ 1434.210760] [<ffffffff819f3d6e>] ? debug_print_object+0x8e/0xb0 [ 1434.210760] [<ffffffff8110b887>] warn_slowpath_common+0x87/0xb0 [ 1434.210760] [<ffffffff8110b911>] warn_slowpath_fmt+0x41/0x50 [ 1434.210760] [<ffffffff819f3d6e>] debug_print_object+0x8e/0xb0 [ 1434.210760] [<ffffffff8376b750>] ? hci_dev_open+0x310/0x310 [ 1434.210760] [<ffffffff83bf94e5>] ? _raw_spin_unlock_irqrestore+0x55/0xa0 [ 1434.210760] [<ffffffff819f3ee5>] __debug_check_no_obj_freed+0xa5/0x230 [ 1434.210760] [<ffffffff83785db0>] ? bt_host_release+0x10/0x20 [ 1434.210760] [<ffffffff819f4d15>] debug_check_no_obj_freed+0x15/0x20 [ 1434.210760] [<ffffffff8125eee7>] kfree+0x227/0x330 [ 1434.210760] [<ffffffff83785db0>] bt_host_release+0x10/0x20 [ 1434.210760] [<ffffffff81e539e5>] device_release+0x65/0xc0 [ 1434.210760] [<ffffffff819d3975>] kobject_cleanup+0x145/0x190 [ 1434.210760] [<ffffffff819d39cd>] kobject_release+0xd/0x10 [ 1434.210760] [<ffffffff819d33cc>] kobject_put+0x4c/0x60 [ 1434.210760] [<ffffffff81e548b2>] put_device+0x12/0x20 [ 1434.210760] [<ffffffff8376a334>] hci_free_dev+0x24/0x30 [ 1434.210760] [<ffffffff82fd8fe1>] vhci_release+0x31/0x60 [ 1434.210760] [<ffffffff8127be12>] __fput+0x122/0x250 [ 1434.210760] [<ffffffff811cab0d>] ? rcu_user_exit+0x9d/0xd0 [ 1434.210760] [<ffffffff8127bf49>] ____fput+0x9/0x10 [ 1434.210760] [<ffffffff81133402>] task_work_run+0xb2/0xf0 [ 1434.210760] [<ffffffff8106cfa7>] do_notify_resume+0x77/0xa0 [ 1434.210760] [<ffffffff83bfb0ea>] int_signal+0x12/0x17 [ 1434.210760] ---[ end trace a6d57fefbc8a8cc7 ]--- Cc: stable@vger.kernel.org Reported-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/hci_core.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 81f4bac..69eb644 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1854,6 +1854,8 @@ void hci_unregister_dev(struct hci_dev *hdev)
for (i = 0; i < NUM_REASSEMBLY; i++)
kfree_skb(hdev->reassembly[i]);
+ cancel_work_sync(&hdev->power_on);
+
if (!test_bit(HCI_INIT, &hdev->flags) &&
!test_bit(HCI_SETUP, &hdev->dev_flags)) {
hci_dev_lock(hdev);
OpenPOWER on IntegriCloud