Linux video capture interface: v2.00
vpif_capture vpif_capture: Error registering v4l2 subdevice
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c0004000
[00000000] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT
last sysfs file: 
Modules linked in:
CPU: 0    Not tainted  (2.6.37 #0)
PC is at __wake_up_common+0x14/0x7c
LR is at complete_all+0x58/0x8c
pc : [<c00416a8>]    lr : [<c00445ec>]    psr: 60000093
sp : c7827d70  ip : c7827da0  fp : c7827d9c
r10: 00000000  r9 : 00000003  r8 : c04b9ce4
r7 : c79e6c00  r6 : 00000000  r5 : c04ca9a4  r4 : 00000000
r3 : 00000000  r2 : 00000000  r1 : 00000003  r0 : c79f1cb4
Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
Control: 0005317f  Table: c0004000  DAC: 00000017
Process swapper (pid: 1, stack limit = 0xc7826270)
Stack: (0xc7827d70 to 0xc7828000)
7d60:                                     00000000 60000013 c04ca9a4 00000000
7d80: c79e6c00 c04b9ce4 00000000 00000000 c7827dbc c7827da0 c00445ec c00416a4
7da0: 00000000 c7827db0 c03953d4 c79f1c50 c7827dd4 c7827dc0 c01eaf68 c00445a4
7dc0: c79f1c50 c79f1c50 c7827df4 c7827dd8 c01e30dc c01eaf5c c79f1c50 c79f1600
7de0: c04fd9f4 c79e6c00 c7827e0c c7827df8 c01e3224 c01e30b0 c79f1c48 c79f1600
7e00: c7827e24 c7827e10 c026c1a0 c01e3220 c79f1c00 c79f1600 c7827e3c c7827e28
7e20: c0271558 c026c15c c79f1c00 c79f1600 c7827e5c c7827e40 c0271778 c02714dc
7e40: c79b3f20 00000000 00000002 c79e6c00 c7827ea4 c7827e60 c002074c c027175c
7e60: 00000000 00000001 c04b4f00 c04b999c c7850200 00000001 c7827e94 c04b4f08
7e80: c04b4f08 c04e2c64 c79ea660 c04ca630 00000000 00000000 c7827eb4 c7827ea8
7ea0: c01e6af8 c00201d8 c7827ed4 c7827eb8 c01e5a54 c01e6ae8 c04b4f08 c04b4f3c
7ec0: c04e2c64 c79ea660 c7827ef4 c7827ed8 c01e5b84 c01e5988 00000000 c01e5b1c
7ee0: c04e2c64 c79ea660 c7827f1c c7827ef8 c01e518c c01e5b2c c7837038 c7856930
7f00: c019c858 c0029088 c00083ac c04e2c64 c7827f2c c7827f20 c01e586c c01e514c
7f20: c7827f5c c7827f30 c01e4a5c c01e585c c0448345 c7827f40 c0029088 c00083ac
7f40: c04e2c64 00000013 c00201ac 00000000 c7827f84 c7827f60 c01e5ec4 c01e49b8
7f60: c0029088 c00083ac c004b2c4 00000013 c00201ac 00000000 c7827f94 c7827f88
7f80: c01e6f9c c01e5e24 c7827fa4 c7827f98 c00201c0 c01e6f60 c7827fdc c7827fa8
7fa0: c0032420 c00201bc 000000f5 c00083ac c004b2c4 00000013 c0029088 c00083ac
7fc0: c004b2c4 00000013 00000000 00000000 c7827ff4 c7827fe0 c0008448 c0032360
7fe0: 00000000 c00083ac 00000000 c7827ff8 c004b2c4 c00083bc 00000000 00000000
Backtrace: 
[<c0041694>] (__wake_up_common+0x0/0x7c) from [<c00445ec>] (complete_all+0x58/0x8c)
[<c0044594>] (complete_all+0x0/0x8c) from [<c01eaf68>] (device_pm_remove+0x1c/0x60)
 r4:c79f1c50
[<c01eaf4c>] (device_pm_remove+0x0/0x60) from [<c01e30dc>] (device_del+0x3c/0x170)
 r5:c79f1c50 r4:c79f1c50
[<c01e30a0>] (device_del+0x0/0x170) from [<c01e3224>] (device_unregister+0x14/0x20)
 r7:c79e6c00 r6:c04fd9f4 r5:c79f1600 r4:c79f1c50
[<c01e3210>] (device_unregister+0x0/0x20) from [<c026c1a0>] (video_unregister_device+0x54/0x5c)
 r5:c79f1600 r4:c79f1c48
[<c026c14c>] (video_unregister_device+0x0/0x5c) from [<c0271558>] (v4l2_device_unregister_subdev+0x8c/0x98)
 r5:c79f1600 r4:c79f1c00
[<c02714cc>] (v4l2_device_unregister_subdev+0x0/0x98) from [<c0271778>] (v4l2_device_unregister+0x2c/0x7c)
 r5:c79f1600 r4:c79f1c00
[<c027174c>] (v4l2_device_unregister+0x0/0x7c) from [<c002074c>] (vpif_probe+0x584/0x6b0)
 r7:c79e6c00 r6:00000002 r5:00000000 r4:c79b3f20
[<c00201c8>] (vpif_probe+0x0/0x6b0) from [<c01e6af8>] (platform_drv_probe+0x20/0x24)
[<c01e6ad8>] (platform_drv_probe+0x0/0x24) from [<c01e5a54>] (driver_probe_device+0xdc/0x1a4)
[<c01e5978>] (driver_probe_device+0x0/0x1a4) from [<c01e5b84>] (__driver_attach+0x68/0x8c)
 r7:c79ea660 r6:c04e2c64 r5:c04b4f3c r4:c04b4f08