------------[ cut here ]------------
WARNING: at /build/buildd/linux-2.6.35/net/wireless/core.c:633 wdev_cleanup_work+0xe1/0x110 [cfg80211]()
Hardware name: N/A                                            
Modules linked in: cryptd aes_x86_64 aes_generic binfmt_misc parport_pc ppdev vboxnetadp vboxnetflt vboxdrv input_polldev dm_crypt joydev snd_hda_codec_si3054 snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep arc4 snd_pcm snd_seq_midi iwl3945 snd_rawmidi snd_seq_midi_event snd_seq iwlcore mac80211 snd_timer snd_seq_device uvcvideo videodev v4l1_compat v4l2_compat_ioctl32 cfg80211 snd psmouse serio_raw soundcore snd_page_alloc lp parport i915 drm_kms_helper drm firewire_ohci sdhci_pci ahci firewire_core sdhci led_class crc_itu_t tg3 i2c_algo_bit video libahci intel_agp output
Pid: 661, comm: cfg80211 Not tainted 2.6.35-19-generic #28-Ubuntu
Call Trace:
 [<ffffffff8105f72f>] warn_slowpath_common+0x7f/0xc0
 [<ffffffff8105f78a>] warn_slowpath_null+0x1a/0x20
 [<ffffffffa01a2271>] wdev_cleanup_work+0xe1/0x110 [cfg80211]
 [<ffffffffa01a2190>] ? wdev_cleanup_work+0x0/0x110 [cfg80211]
 [<ffffffff81079665>] run_workqueue+0xc5/0x1a0
 [<ffffffff810797e3>] worker_thread+0xa3/0x110
 [<ffffffff8107e510>] ? autoremove_wake_function+0x0/0x40
 [<ffffffff81079740>] ? worker_thread+0x0/0x110
 [<ffffffff8107dfb6>] kthread+0x96/0xa0
 [<ffffffff8100aee4>] kernel_thread_helper+0x4/0x10
 [<ffffffff8107df20>] ? kthread+0x0/0xa0
 [<ffffffff8100aee0>] ? kernel_thread_helper+0x0/0x10
---[ end trace a0793f9568321ece ]---