BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<(null)>] (null)
PGD 12f33f067 PUD 1325e8067 PMD 0 
Oops: 0010 [#1] SMP 
last sysfs file: /sys/devices/pci0000:00/0000:00:02.0/boot_vga
CPU 1 
Modules linked in: binfmt_misc parport_pc ppdev snd_hda_codec_intelhdmi joydev tpm_infineon snd_hda_codec_realtek arc4 i915 drm_kms_helper drm snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi ath9k ath9k_common ath9k_hw ath snd_seq_midi_event mac80211 snd_seq snd_timer snd_seq_device uvcvideo videodev v4l1_compat v4l2_compat_ioctl32 cfg80211 tpm_tis sony_laptop snd i2c_algo_bit tpm tpm_bios psmouse serio_raw intel_ips video intel_agp output soundcore snd_page_alloc lp parport ahci libahci atl1c sdhci_pci sdhci led_class

Pid: 722, comm: ips-adjust Not tainted 2.6.35-21-generic #31-Ubuntu VAIO/VPCB11KGX
RIP: 0010:[<0000000000000000>]  [<(null)>] (null)
RSP: 0018:ffff880131c13e78  EFLAGS: 00010202
RAX: 0000000000000286 RBX: ffff88012f0629c0 RCX: 0000000000000064
RDX: 000000000000ffff RSI: 0000000000000286 RDI: 0000000000000286
RBP: ffff880131c13ee0 R08: 0000000000000000 R09: 00000000ffffffff
R10: 00000000ffffffff R11: 0000000000000001 R12: ffff88012f062a00
R13: 0000000000000000 R14: 0000000000002328 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff880001e40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 000000012f341000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process ips-adjust (pid: 722, threadinfo ffff880131c12000, task ffff88012f3bc4a0)
Stack:
 ffffffffa007cc03 ffff880131c13fd8 ffff880131c13eac ffff880131cb8000
<0> ffff880100000d18 0000000000000286 ffff880131cb5be8 ffff880131c13ee0
<0> ffff880131cb5bc8 ffff880131c13ef8 ffffffffa007c8c0 ffff88012f0629c0
Call Trace:
 [<ffffffffa007cc03>] ? ips_adjust+0x343/0x490 [intel_ips]
 [<ffffffffa007c8c0>] ? ips_adjust+0x0/0x490 [intel_ips]
 [<ffffffff8107f096>] kthread+0x96/0xa0
 [<ffffffff8100aee4>] kernel_thread_helper+0x4/0x10
 [<ffffffff8107f000>] ? kthread+0x0/0xa0
 [<ffffffff8100aee0>] ? kernel_thread_helper+0x0/0x10
Code:  Bad RIP value.
RIP  [<(null)>] (null)
 RSP <ffff880131c13e78>
CR2: 0000000000000000
---[ end trace ecbcb05887628b04 ]---