usb 1-1: config 0 has no interface number 0 usb 1-1: New USB device found, idVendor=174f, idProduct=5212, bcdDevice=1e.19 usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 1-1: config 0 descriptor?? INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 0 PID: 102 Comm: kworker/0:2 Not tainted 5.4.0-rc6+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xca/0x13e lib/dump_stack.c:113 assign_lock_key kernel/locking/lockdep.c:881 [inline] register_lock_class+0x1022/0x11d0 kernel/locking/lockdep.c:1190 __lock_acquire+0xfc/0x3b60 kernel/locking/lockdep.c:3837 lock_acquire+0x127/0x320 kernel/locking/lockdep.c:4487 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x32/0x50 kernel/locking/spinlock.c:159 ida_destroy+0xb0/0x3a0 lib/idr.c:551 ?