linux_dsm_epyc7002/net/bluetooth
Vinicius Costa Gomes 78c04c0bf5 Bluetooth: Fix not removing power_off delayed work
For example, when a usb reset is received (I could reproduce it
running something very similar to this[1] in a loop) it could be
that the device is unregistered while the power_off delayed work
is still scheduled to run.

Backtrace:

WARNING: at lib/debugobjects.c:261 debug_print_object+0x7c/0x8d()
Hardware name: To Be Filled By O.E.M.
ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x26
Modules linked in: nouveau mxm_wmi btusb wmi bluetooth ttm coretemp drm_kms_helper
Pid: 2114, comm: usb-reset Not tainted 3.5.0bt-next #2
Call Trace:
 [<ffffffff8124cc00>] ? free_obj_work+0x57/0x91
 [<ffffffff81058f88>] warn_slowpath_common+0x7e/0x97
 [<ffffffff81059035>] warn_slowpath_fmt+0x41/0x43
 [<ffffffff8124ccb6>] debug_print_object+0x7c/0x8d
 [<ffffffff8106e3ec>] ? __queue_work+0x259/0x259
 [<ffffffff8124d63e>] ? debug_check_no_obj_freed+0x6f/0x1b5
 [<ffffffff8124d667>] debug_check_no_obj_freed+0x98/0x1b5
 [<ffffffffa00aa031>] ? bt_host_release+0x10/0x1e [bluetooth]
 [<ffffffff810fc035>] kfree+0x90/0xe6
 [<ffffffffa00aa031>] bt_host_release+0x10/0x1e [bluetooth]
 [<ffffffff812ec2f9>] device_release+0x4a/0x7e
 [<ffffffff8123ef57>] kobject_release+0x11d/0x154
 [<ffffffff8123ed98>] kobject_put+0x4a/0x4f
 [<ffffffff812ec0d9>] put_device+0x12/0x14
 [<ffffffffa009472b>] hci_free_dev+0x22/0x26 [bluetooth]
 [<ffffffffa0280dd0>] btusb_disconnect+0x96/0x9f [btusb]
 [<ffffffff813581b4>] usb_unbind_interface+0x57/0x106
 [<ffffffff812ef988>] __device_release_driver+0x83/0xd6
 [<ffffffff812ef9fb>] device_release_driver+0x20/0x2d
 [<ffffffff813582a7>] usb_driver_release_interface+0x44/0x7b
 [<ffffffff81358795>] usb_forced_unbind_intf+0x45/0x4e
 [<ffffffff8134f959>] usb_reset_device+0xa6/0x12e
 [<ffffffff8135df86>] usbdev_do_ioctl+0x319/0xe20
 [<ffffffff81203244>] ? avc_has_perm_flags+0xc9/0x12e
 [<ffffffff812031a0>] ? avc_has_perm_flags+0x25/0x12e
 [<ffffffff81050101>] ? do_page_fault+0x31e/0x3a1
 [<ffffffff8135eaa6>] usbdev_ioctl+0x9/0xd
 [<ffffffff811126b1>] vfs_ioctl+0x21/0x34
 [<ffffffff81112f7b>] do_vfs_ioctl+0x408/0x44b
 [<ffffffff81208d45>] ? file_has_perm+0x76/0x81
 [<ffffffff8111300f>] sys_ioctl+0x51/0x76
 [<ffffffff8158db22>] system_call_fastpath+0x16/0x1b

[1] http://cpansearch.perl.org/src/DPAVLIN/Biblio-RFID-0.03/examples/usbreset.c

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-09-18 20:13:02 -03:00
..
bnep Bluetooth: Remove unnecessary headers include 2012-06-05 06:34:08 +03:00
cmtp Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
hidp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-06-28 17:37:00 -07:00
rfcomm Bluetooth: Remove unnecessary headers include 2012-06-05 06:34:08 +03:00
a2mp.c Bluetooth: debug: Print amp_mgr refcnt 2012-07-11 10:09:37 -03:00
af_bluetooth.c Bluetooth: Fix checking the wrong flag when accepting a socket 2012-06-05 06:34:16 +03:00
hci_conn.c Bluetooth: Fix sending a HCI Authorization Request over LE links 2012-08-27 08:11:51 -07:00
hci_core.c Bluetooth: Fix not removing power_off delayed work 2012-09-18 20:13:02 -03:00
hci_event.c Bluetooth: Set name_state to unknown when entry name is empty 2012-08-06 15:19:36 -03:00
hci_sock.c Bluetooth: Remove unnecessary headers include 2012-06-05 06:34:08 +03:00
hci_sysfs.c Bluetooth: Remove unnecessary headers include 2012-06-05 06:34:08 +03:00
Kconfig Bluetooth: Fix Kconfig help description 2012-02-29 18:50:25 +02:00
l2cap_core.c Bluetooth: Fix freeing uninitialized delayed works 2012-09-18 20:07:04 -03:00
l2cap_sock.c Bluetooth: Change signature of smp_conn_security() 2012-08-27 08:07:18 -07:00
lib.c Bluetooth: Remove unnecessary headers include 2012-06-05 06:34:08 +03:00
Makefile Bluetooth: A2MP: Create A2MP channel 2012-06-05 06:34:11 +03:00
mgmt.c Bluetooth: mgmt: Fix enabling LE while powered off 2012-09-18 20:07:03 -03:00
sco.c Bluetooth: Fix possible deadlock in SCO code 2012-08-06 15:19:36 -03:00
smp.c Bluetooth: Change signature of smp_conn_security() 2012-08-27 08:07:18 -07:00