------------[ cut here ]------------
WARNING: at /build/buildd/linux-2.6.35/net/wireless/core.c:633 wdev_cleanup_work+0xe1/0x110 [cfg80211]()
Hardware name: Compaq 610 (VC386ES#ABZ)
Modules linked in: btrfs zlib_deflate crc32c libcrc32c ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs xfs exportfs reiserfs binfmt_misc vboxnetadp vboxnetflt vboxdrv parport_pc ppdev snd_hda_codec_idt arc4 snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi iwlagn snd_rawmidi snd_seq_midi_event snd_seq iwlcore i915 joydev snd_timer snd_seq_device snd mac80211 drm_kms_helper drm cfg80211 soundcore snd_page_alloc intel_agp i2c_algo_bit uvcvideo videodev video psmouse v4l1_compat v4l2_compat_ioctl32 lp output parport serio_raw hp_wmi usbhid hid sky2 ahci libahci
Pid: 728, comm: cfg80211 Not tainted 2.6.35-22-generic #33-Ubuntu
Call Trace:
 [<ffffffff8106077f>] warn_slowpath_common+0x7f/0xc0
 [<ffffffff810607da>] warn_slowpath_null+0x1a/0x20
 [<ffffffffa00da271>] wdev_cleanup_work+0xe1/0x110 [cfg80211]
 [<ffffffffa00da190>] ? wdev_cleanup_work+0x0/0x110 [cfg80211]
 [<ffffffff8107a765>] run_workqueue+0xc5/0x1a0
 [<ffffffff8107a8e3>] worker_thread+0xa3/0x110
 [<ffffffff8107f610>] ? autoremove_wake_function+0x0/0x40
 [<ffffffff8107a840>] ? worker_thread+0x0/0x110
 [<ffffffff8107f0b6>] kthread+0x96/0xa0
 [<ffffffff8100aee4>] kernel_thread_helper+0x4/0x10
 [<ffffffff8107f020>] ? kthread+0x0/0xa0
 [<ffffffff8100aee0>] ? kernel_thread_helper+0x0/0x10
---[ end trace 83f8a31e9dbea361 ]---