INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 1 UID: 0 PID: 14109 Comm: syz.3.2044 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:1028
 register_lock_class+0xcc/0x2e0 kernel/locking/lockdep.c:1343
 __lock_acquire+0x10c/0x2de0 kernel/locking/lockdep.c:5162
 lock_acquire+0x115/0x350 kernel/locking/lockdep.c:5942
 __mutex_lock_common kernel/locking/rtmutex_api.c:561 [inline]
 mutex_lock_interruptible_nested+0x5a/0x1d0 kernel/locking/rtmutex_api.c:594
 as102_dvb_dmx_start_feed+0x70/0x290 drivers/media/usb/as102/as102_drv.c:139
 dmx_ts_feed_start_filtering+0x129/0x220 drivers/media/dvb-core/dvb_demux.c:747
 dvb_dmxdev_start_feed drivers/media/dvb-core/dmxdev.c:658 [inline]
 dvb_dmxdev_filter_start+0x434/0x10d0 drivers/media/dvb-core/dmxdev.c:769
 dvb_demux_do_ioctl+0x48e/0x540 drivers/media/dvb-core/dmxdev.c:1099
 dvb_usercopy+0x199/0x2e0 drivers/media/dvb-core/dvbdev.c:996
 dvb_demux_ioctl+0x29/0x40 drivers/media/dvb-core/dmxdev.c:1208
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xff/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f907af0e159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9079166028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f907b195fa0 RCX: 00007f907af0e159
RDX: 0000200000000000 RSI: 0000000040146f2c RDI: 0000000000000004
RBP: 00007f907afa506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f907b196038 R14: 00007f907b195fa0 R15: 00007ffd28550ef8
 </TASK>
usb 4-1: as102_submit_urb_stream: usb_submit_urb failed
kcov: kcov_task_exit: t = ffff888027163e80, kcov->t = ffff888027163e80
bus: 'gadget': remove driver raw-gadget.0
kernfs bind: removing
kernfs unbind: removing
kernfs uevent: removing
kernfs gadget.3: removing
kernfs driver: removing
udc dummy_udc.3: unbinding gadget driver [USB Raw Gadget]
raw-gadget.0 gadget.3: gadget suspended
dummy_hcd dummy_hcd.3: port status 0x00010100 has changes
raw-gadget.0 gadget.3: gadget disconnected
kobject: 'dummy_udc.3' (ffff88802ae79018): kobject_uevent_env
kobject: 'dummy_udc.3' (ffff88802ae79018): fill_kobj_path: path = '/devices/platform/dummy_udc.3/udc/dummy_udc.3'
kobject: 'gadget.3' (ffff88802a43cd58): kobject_uevent_env
kobject: 'gadget.3' (ffff88802a43cd58): fill_kobj_path: path = '/devices/platform/dummy_udc.3/gadget.3'
kernfs module: removing
kernfs gadget:raw-gadget.0: removing
kobject: 'raw-gadget.0' (ffff8880609ca800): kobject_cleanup, parent ffff8880216fa490
kobject: 'raw-gadget.0' (ffff8880609ca800): auto cleanup kobject_del
kobject: 'raw-gadget.0' (ffff8880609ca800): auto cleanup 'remove' event
kobject: 'raw-gadget.0' (ffff8880609ca800): kobject_uevent_env
kobject: 'raw-gadget.0' (ffff8880609ca800): fill_kobj_path: path = '/bus/gadget/drivers/raw-gadget.0'
kernfs raw-gadget.0: removing
kobject: 'raw-gadget.0' (ffff8880609ca800): calling ktype release
driver: 'raw-gadget.0': driver_release
kobject: 'raw-gadget.0': free name