Comment 13 for bug 115329

The new strack trace on Gutsy tribe5

[ 500.226789] Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP:
[ 500.226792] [<ffffffff80325bf2>] strlen+0x2/0x20
[ 500.226802] PGD 1a9b4067 PUD 1a9b3067 PMD 0
[ 500.226892] Stack: ffffffff80391ff0 ffffffff880c0da0 ffff810016c8f388 ffff810016c8f398
[ 500.226899] ffffffff803921d1 ffff81001d2ae238 ffff810016c8f388 ffff810016c8f0e8
[ 500.226903] 0000000000000246 ffffffff881575c0 0000000000000000 ffff81001d10d4d0
[ 500.226907] Call Trace:
[ 500.226914] [<ffffffff80391ff0>] make_class_name+0x20/0x90
[ 500.226925] [<ffffffff803921d1>] class_device_del+0xc1/0x170
[ 500.226946] [<ffffffff80392289>] class_device_unregister+0x9/0x20
[ 500.226973] [<ffffffff880a3273>] :scsi_mod:__scsi_remove_device+0x43/0xa0
[ 500.226998] [<ffffffff880a02d1>] :scsi_mod:scsi_forget_host+0x61/0x80
[ 500.227023] [<ffffffff88099d91>] :scsi_mod:scsi_remove_host+0x61/0x100
[ 500.227043] [<ffffffff88147f90>] :usb_storage:storage_disconnect+0x10/0x20
[ 500.227068] [<ffffffff88060aad>] :usbcore:usb_unbind_interface+0x6d/0xd0
[ 500.227085] [<ffffffff80391552>] __device_release_driver+0x82/0xc0
[ 500.227096] [<ffffffff80391a78>] device_release_driver+0x38/0x60
[ 500.227107] [<ffffffff80390cc6>] bus_remove_device+0x76/0xb0
[ 500.227118] [<ffffffff8038ea1a>] device_del+0x1ba/0x2f0
[ 500.227147] [<ffffffff8805d971>] :usbcore:usb_disable_device+0x91/0x110
[ 500.227172] [<ffffffff880595db>] :usbcore:usb_disconnect+0xab/0x150
[ 500.227206] [<ffffffff88059d38>] :usbcore:hub_thread+0x2c8/0xda0
[ 500.227251] [<ffffffff8024b230>] autoremove_wake_function+0x0/0x30
[ 500.227287] [<ffffffff88059a70>] :usbcore:hub_thread+0x0/0xda0
[ 500.227298] [<ffffffff8024ae6b>] kthread+0x4b/0x80
[ 500.227310] [<ffffffff8020aca8>] child_rip+0xa/0x12
[ 500.227348] [<ffffffff8024ae20>] kthread+0x0/0x80
[ 500.227354] [<ffffffff8020ac9e>] child_rip+0x0/0x12
[ 500.227366]
[ 500.227367] Code: 80 3f 00 74 15 48 89 f8 66 0f 1f 44 00 00 48 83 c0 01 80 38
[ 500.227375] RIP [<ffffffff80325bf2>] strlen+0x2/0x20
[ 500.227379] RSP <ffff81001f06bc38>
[ 500.227381] CR2: 0000000000000000