01: de553e40 c01196f8 wait_for_completion+0x78/0xf0
02: de553e4c c0119420 default_wake_function+0x0/0x20
03: de553e6c c0119420 default_wake_function+0x0/0x20
04: de553e78 c0214640 device_del+0x70/0xa0
05: de553e94 e09132bd usb_disable_device+0x7d/0xe0
06: de553ea0 c0119471 __wake_up_common+0x31/0x60
07: de553ed0 e0913703 usb_set_configuration+0x93/0x290
08: de553ee0 c012780e do_notify_parent+0x14e/0x540
09: de553f20 e09184de usbdev_ioctl+0x13e/0x360
10: de553f50 c0118e4d schedule+0x4d/0x5d0
11: de553f6c c01657f7 file_ioctl+0x77/0x1b0
12: de553f94 c0165a57 sys_ioctl+0x127/0x290
13: de553fac c01160a5 do_syscall_trace+0x35/0x90
14: de553fc0 c02930eb syscall_call+0x7/0xb