------------[ cut here ]------------
WARNING: at /build/buildd/linux-2.6.31/net/mac80211/scan.c:281 ieee80211_scan_completed+0xf1/0x470 [mac80211]()
Hardware name: HP Compaq 6710b (RM342UT#ABA)
Modules linked in: binfmt_misc bridge stp bnep dm_crypt snd_hda_codec_analog snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm sbp2 snd_seq_dummy arc4 snd_seq_oss snd_seq_midi ecb iptable_filter joydev psmouse snd_rawmidi hp_accel ppdev lp pcmcia snd_seq_midi_event lis3lv02d snd_seq iwl3945 snd_timer tpm_infineon tpm yenta_socket rsrc_nonstatic iwlcore snd_seq_device serio_raw ip_tables btusb input_polldev pcmcia_core tpm_bios snd mac80211 soundcore parport_pc x_tables snd_page_alloc parport cfg80211 led_class dm_raid45 xor usbhid fbcon tileblit font bitblit softcursor ohci1394 ieee1394 tg3 i915 drm i2c_algo_bit video output intel_agp
Pid: 911, comm: iwl3945 Tainted: G        W  2.6.31-14-generic #48-Ubuntu
Call Trace:
 [<ffffffff8105e788>] warn_slowpath_common+0x78/0xb0
 [<ffffffff8105e7cf>] warn_slowpath_null+0xf/0x20
 [<ffffffffa017aed1>] ieee80211_scan_completed+0xf1/0x470 [mac80211]
 [<ffffffffa01f39e0>] ? iwl_bg_scan_completed+0x0/0x90 [iwlcore]
 [<ffffffffa01f3a24>] iwl_bg_scan_completed+0x44/0x90 [iwlcore]
 [<ffffffff810737a5>] run_workqueue+0x95/0x170
 [<ffffffff81073924>] worker_thread+0xa4/0x120
 [<ffffffff81078b30>] ? autoremove_wake_function+0x0/0x40
 [<ffffffff81073880>] ? worker_thread+0x0/0x120
 [<ffffffff81078746>] kthread+0xa6/0xb0
 [<ffffffff810130ea>] child_rip+0xa/0x20
 [<ffffffff810786a0>] ? kthread+0x0/0xb0
 [<ffffffff810130e0>] ? child_rip+0x0/0x20
---[ end trace ba519f9da3f89da9 ]---