usb 5-1: New USB device found, idVendor=1286, idProduct=2052, bcdDevice=95.7c usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 5-1: config 0 descriptor?? usb 5-1: Direct firmware load for mrvl/usbusb8997_combo_v4.bin failed with error -2 usb 5-1: Failed to get firmware mrvl/usbusb8997_combo_v4.bin usb 5-1: info: _mwifiex_fw_dpc: unregister device INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 1 PID: 3596 Comm: kworker/1:6 Not tainted 5.9.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events request_firmware_work_func Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:118 assign_lock_key kernel/locking/lockdep.c:933 [inline] register_lock_class+0x121d/0x1640 kernel/locking/lockdep.c:1245 __lock_acquire+0xfd/0x5a60 kernel/locking/lockdep.c:4716 lock_acquire kernel/locking/lockdep.c:5442 [inline] lock_acquire+0x1a7/0x830 kernel/locking/lockdep.c:5407 del_timer_sync+0x5b/0x160 kernel/time/timer.c:1365 mwifiex_usb_cleanup_tx_aggr drivers/net/wireless/marvell/mwifiex/usb.c:1356 [inline] mwifiex_unregister_dev+0x41f/0x690 drivers/net/wireless/marvell/mwifiex/usb.c:1368 _mwifiex_fw_dpc+0x734/0xfb0 drivers/net/wireless/marvell/mwifiex/main.c:649 request_firmware_work_func+0x12c/0x230 drivers/base/firmware_loader/main.c:1079 process_one_work+0x933/0x1520 kernel/workqueue.c:2269 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415 kthread+0x392/0x470 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 ------------[ cut here ]------------ ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0 WARNING: CPU: 1 PID: 3596 at lib/debugobjects.c:505 debug_print_object+0x160/0x250 lib/debugobjects.c:505