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    SubjectRe: [PATCH 1/2] HID: hid-lg4ff add support for G27 LEDs
    From

    > Could you please post the full oops?

    --
    Mar 13 14:05:55 ubuntu kernel: [ 3286.170380] logitech
    0003:046D:C294.0002: input,hidraw0: USB HID v1.11 Joystick [PS3/USB
    Cordless Wheel] on usb-0000:02:00.0-1/input0
    Mar 13 14:05:55 ubuntu kernel: [ 3286.171462] BUG: unable to handle kernel
    NULL pointer dereference at 00000091
    Mar 13 14:05:55 ubuntu kernel: [ 3286.171543] IP: [<e09f3998>]
    lg4ff_led_get_brightness+0x28/0x90 [hid_logitech]
    Mar 13 14:05:55 ubuntu kernel: [ 3286.171931] *pde = 00000000
    Mar 13 14:05:55 ubuntu kernel: [ 3286.171991] Oops: 0000 [#1] SMP
    Mar 13 14:05:55 ubuntu kernel: [ 3286.172253] Modules linked in:
    hid_logitech joydev ff_memless usbhid hid binfmt_misc snd_ens1371 gameport
    snd_ac97_codec ac97_bus snd_pcm snd_seq_midi snd_rawmidi
    snd_seq_midi_event snd_seq snd_timer snd_seq_device snd soundcore
    i2c_piix4 ppdev snd_page_alloc shpchp psmouse serio_raw lp vmw_balloon
    parport_pc parport floppy pcnet32 mptspi mptscsih mptbase
    scsi_transport_spi [last unloaded: hid_logitech]
    Mar 13 14:05:55 ubuntu kernel: [ 3286.172434]
    Mar 13 14:05:55 ubuntu kernel: [ 3286.172517] Pid: 16, comm: khubd Not
    tainted 3.3.0-rc6-stock+ #10 VMware, Inc. VMware Virtual Platform/440BX
    Desktop Reference Platform
    Mar 13 14:05:55 ubuntu kernel: [ 3286.173257] EIP: 0060:[<e09f3998>]
    EFLAGS: 00010202 CPU: 0
    Mar 13 14:05:55 ubuntu kernel: [ 3286.173325] EIP is at
    lg4ff_led_get_brightness+0x28/0x90 [hid_logitech]
    Mar 13 14:05:55 ubuntu kernel: [ 3286.173393] EAX: 00000089 EBX: dd3d2540
    ECX: 00000000 EDX: ddc9a000
    Mar 13 14:05:55 ubuntu kernel: [ 3286.173406] ESI: dd3a51b8 EDI: dd3a51b8
    EBP: de59fa94 ESP: de59fa84
    Mar 13 14:05:55 ubuntu kernel: [ 3286.173419] DS: 007b ES: 007b FS: 00d8
    GS: 00e0 SS: 0068
    Mar 13 14:05:55 ubuntu kernel: [ 3286.173452] Process khubd (pid: 16,
    ti=de59e000 task=de4cbf70 task.ti=de59e000)
    Mar 13 14:05:55 ubuntu kernel: [ 3286.173471] Stack:
    Mar 13 14:05:55 ubuntu kernel: [ 3286.173517] c13498ed de59fa94 dd3d2540
    dda080a0 de59fab8 c1439119 de57c5c0 dd3a51b8
    Mar 13 14:05:55 ubuntu kernel: [ 3286.173681] 00000000 dd3d2540 c16f79e0
    e09f5e1d 00000000 de59fafc e09f4311 00002200
    Mar 13 14:05:55 ubuntu kernel: [ 3286.173689] 00000000 dd3d23c0 00000002
    ddc9ac64 00000000 dd3a51b8 00010800 dde10022
    Mar 13 14:05:55 ubuntu kernel: [ 3286.173738] Call Trace:
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174090] [<c13498ed>] ?
    device_create+0x2d/0x30
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174212] [<c1439119>]
    led_classdev_register+0x99/0xf0
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174269] [<e09f4311>]
    lg4ff_init+0x2a1/0x570 [hid_logitech]
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174276] [<e09f2427>]
    lg_probe+0x147/0x2c0 [hid_logitech]
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174360] [<c1027938>] ?
    default_spin_lock_flags+0x8/0x10
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174638] [<c153b6af>] ?
    _raw_spin_lock_irqsave+0x2f/0x50
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174672] [<e0a025a3>] ?
    hid_match_device+0x83/0x90 [hid]
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174680] [<e0a02bf0>]
    hid_device_probe+0x80/0x100 [hid]
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174685] [<c134b452>] ?
    driver_sysfs_add+0x72/0x90
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174692] [<c134b6cf>]
    driver_probe_device+0x7f/0x190
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174698] [<c134b8b9>]
    __device_attach+0x49/0x60
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174703] [<c134b870>] ?
    __driver_attach+0x90/0x90
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174707] [<c134a0ff>]
    bus_for_each_drv+0x4f/0x70
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174712] [<c134b5aa>]
    device_attach+0x8a/0xa0
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174716] [<c134b870>] ?
    __driver_attach+0x90/0x90
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174721] [<c134ae3f>]
    bus_probe_device+0x6f/0x90
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174725] [<c1349710>]
    device_add+0x560/0x610
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174732] [<e0a026b2>]
    hid_add_device+0x92/0x1f0 [hid]
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174742] [<e09a5c26>]
    usbhid_probe+0x2e6/0x430 [usbhid]
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174753] [<c13c7c06>]
    usb_probe_interface+0xd6/0x1b0
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174766] [<c11898c7>] ?
    sysfs_create_link+0x17/0x20
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174772] [<c134b6cf>]
    driver_probe_device+0x7f/0x190
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174776] [<c13c75fb>] ?
    usb_device_match+0x6b/0x90
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174781] [<c134b8b9>]
    __device_attach+0x49/0x60
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174813] [<c134b870>] ?
    __driver_attach+0x90/0x90
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174821] [<c134a0ff>]
    bus_for_each_drv+0x4f/0x70
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174825] [<c134b5aa>]
    device_attach+0x8a/0xa0
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174830] [<c134b870>] ?
    __driver_attach+0x90/0x90
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174834] [<c134ae3f>]
    bus_probe_device+0x6f/0x90
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174839] [<c1349710>]
    device_add+0x560/0x610
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174845] [<c13c6385>] ?
    usb_set_configuration+0x4c5/0x650
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174850] [<c13c63ee>]
    usb_set_configuration+0x52e/0x650
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174859] [<c13ce5eb>]
    generic_probe+0x3b/0x90
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174864] [<c11898c7>] ?
    sysfs_create_link+0x17/0x20
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174868] [<c13c7d06>]
    usb_probe_device+0x26/0x50
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174873] [<c134b6cf>]
    driver_probe_device+0x7f/0x190
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174908] [<c128c165>] ?
    kobject_uevent_env+0x105/0x420
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174917] [<c153b50d>] ?
    _raw_spin_lock+0xd/0x10
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174922] [<c134b8b9>]
    __device_attach+0x49/0x60
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174925] [<c134b870>] ?
    __driver_attach+0x90/0x90
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174929] [<c134a0ff>]
    bus_for_each_drv+0x4f/0x70
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174934] [<c134b5aa>]
    device_attach+0x8a/0xa0
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174938] [<c134b870>] ?
    __driver_attach+0x90/0x90
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174942] [<c134ae3f>]
    bus_probe_device+0x6f/0x90
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174947] [<c1349710>]
    device_add+0x560/0x610
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174956] [<c13bcf00>] ?
    usb_enumerate_device+0x20/0x100
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174965] [<c13547c9>] ?
    pm_runtime_forbid+0x49/0x60
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174969] [<c13bf720>]
    usb_new_device+0xe0/0x120
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174974] [<c13c0b64>] ?
    hub_thread+0xc44/0xfd0
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174978] [<c13c094f>]
    hub_thread+0xa2f/0xfd0
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174988] [<c1052220>] ?
    wake_up_bit+0x30/0x30
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174993] [<c13bff20>] ?
    usb_remote_wakeup+0x50/0x50
    Mar 13 14:05:55 ubuntu kernel: [ 3286.174997] [<c1051c3c>] kthread+0x7c/0x90
    Mar 13 14:05:55 ubuntu kernel: [ 3286.175001] [<c1051bc0>] ?
    flush_kthread_worker+0xb0/0xb0
    Mar 13 14:05:55 ubuntu kernel: [ 3286.175028] [<c15428be>]
    kernel_thread_helper+0x6/0x10
    Mar 13 14:05:55 ubuntu kernel: [ 3286.175075] Code: 00 00 00 55 89 e5 56
    53 83 ec 08 3e 8d 74 26 00 89 c3 8b 40 1c 8b 30 89 f0 e8 a5 78 95 e0 85 c0
    74 39 8b 40 04 31 c9 85 c0 74 48 <39> 5c 88 08 74 12 83 c1 01 83 f9 05 75
    f2 31 c0 83 c4 08 5b 5e
    Mar 13 14:05:55 ubuntu kernel: [ 3286.175218] EIP: [<e09f3998>]
    lg4ff_led_get_brightness+0x28/0x90 [hid_logitech] SS:ESP 0068:de59fa84
    Mar 13 14:05:55 ubuntu kernel: [ 3286.175263] CR2: 0000000000000091
    Mar 13 14:05:55 ubuntu kernel: [ 3286.175702] ---[ end trace
    bae956db68dd6567 ]---
    Mar 13 14:06:00 ubuntu dhclient: DHCPREQUEST of 192.168.227.143 on eth0 to
    192.168.227.254 port 67
    Mar 13 14:06:00 ubuntu dhclient: DHCPACK of 192.168.227.143 from
    192.168.227.254
    Mar 13 14:06:00 ubuntu dhclient: bound to 192.168.227.143 -- renewal in
    736 seconds.
    --



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