usbcore: registered new interface driver usbhid
usbhid: v2.6:USB HID core driver
NET: Registered protocol family 8
NET: Registered protocol family 20
BUG: unable to handle kernel NULL pointer dereference at 00000000
IP: [<c031772f>] __mutex_lock_slowpath+0x8f/0x250
*pde = 00000000
Oops: 0002 [#1] PREEMPT SMP
Modules linked in: speedtch(+) usbatm atm snd_seq_oss snd_seq_midi_event snd_seq ppdev snd_usb_audio snd_usb_lib uvcvideo analog compat_ioctl32 snd_pcm_oss snd_mixer_oss snd_cs4232 snd_opl3_lib snd_cs4231_lib videodev lp v4l1_compat hci_usb bluetooth usbhid hid ff_memless ppp_generic slhc snd_pcsp snd_mpu401 snd_mpu401_uart snd_rawmidi snd_seq_device ns558 gameport parport_pc parport sg ehci_hcd i2c_i801 snd_hda_intel snd_pcm snd_timer snd_page_alloc snd_hwdep nvidia(P) i2c_core snd soundcore uhci_hcd iTCO_wdt iTCO_vendor_support usbcore sky2 intel_agp agpgart thermal processor evdev fan button battery ac fuse w83627ehf hwmon_vid rtc_cmos rtc_core rtc_lib reiserfs sr_mod cdrom sd_mod ata_piix ata_generic libata scsi_mod dock

Pid: 4398, comm: modprobe Tainted: P          (2.6.27-ARCH #1)
EIP: 0060:[<c031772f>] EFLAGS: 00010096 CPU: 0
EIP is at __mutex_lock_slowpath+0x8f/0x250
EAX: 00000000 EBX: f7dd566c ECX: f7e00000 EDX: f7e01cf8
ESI: 00000246 EDI: f7dd5670 EBP: f7b6db90 ESP: f7e01cf4
 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process modprobe (pid: 4398, ti=f7e00000 task=f7b6db90 task.ti=f7e00000)
Stack: f7dd5674 f7dd5674 00000000 11111111 f7dd566c f7e01cf8 f7d9fe00 f7dd5600
       00000000 f7dd566c f8e1006c f7d9fe00 f7d9fe00 f7d9fe1c 00000000 f8e19200
       f8bb4636 f73f7c00 f7d9fe94 f7d9fe1c f8e19234 f73c5240 c026d7c5 f7d9fe1c
Call Trace:
 [<f8e1006c>] usbatm_usb_disconnect+0x2c/0x220 [usbatm]
 [<f8bb4636>] usb_unbind_interface+0x46/0x100 [usbcore]
 [<c026d7c5>] __device_release_driver+0x75/0xc0
 [<c026d8d0>] device_release_driver+0x20/0x40
 [<f8bb477f>] usb_driver_release_interface+0x8f/0xa0 [usbcore]
 [<f8bb4823>] usb_forced_unbind_intf+0x13/0x20 [usbcore]
 [<f8bac93c>] usb_reset_device+0x9c/0x150 [usbcore]
 [<f8e17499>] speedtch_bind+0x389/0x5c0 [speedtch]
 [<f8e17110>] speedtch_bind+0x0/0x5c0 [speedtch]
 [<f8e10da7>] usbatm_usb_probe+0x127/0x890 [usbatm]
 [<f8bb3c05>] usb_autopm_do_device+0x65/0xf0 [usbcore]
 [<f8bb4296>] usb_probe_interface+0xa6/0x150 [usbcore]
 [<c026da76>] driver_probe_device+0x86/0x1a0
 [<c0318af4>] _spin_lock_irqsave+0x34/0x50
 [<c026dc01>] __driver_attach+0x71/0x80
 [<c026d3a4>] bus_for_each_dev+0x44/0x70
 [<c026d906>] driver_attach+0x16/0x20
 [<c026db90>] __driver_attach+0x0/0x80
 [<c026cd37>] bus_add_driver+0x1a7/0x220
 [<c026dd9c>] driver_register+0x5c/0x130
 [<f8bb4571>] usb_register_driver+0x81/0x100 [usbcore]
 [<f884b000>] speedtch_usb_init+0x0/0x14 [speedtch]
 [<c010111a>] do_one_initcall+0x2a/0x160
 [<c0123480>] hrtick_start_fair+0x190/0x1b0
 [<c012228d>] enqueue_task+0x5d/0x80
 [<c0126def>] try_to_wake_up+0xaf/0x180
 [<c015474b>] sys_init_module+0x8b/0x1b0
 [<c0103ef3>] sysenter_do_call+0x12/0x33
 =======================
Code: 04 89 d8 8d 54 24 04 e8 60 5e e3 ff 8d 53 08 8b 43 0c 89 14 24 8d 54 24 04 89 53 0c 8b 14 24 89 44 24 08 89 54 24 04 8d 54 24 04 <89> 10 b8 ff ff ff ff 89 6c 24 0c 87 03 83 e8 01 0f 84 db 00 00
EIP: [<c031772f>] __mutex_lock_slowpath+0x8f/0x250 SS:ESP 0068:f7e01cf4
---[ end trace 3facd99e24501e8e ]---