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 PID: 7307 Comm: iou-wrk-7306 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
 assign_lock_key+0x1ec/0x200 kernel/locking/lockdep.c:937
 register_lock_class+0x21d/0x890 kernel/locking/lockdep.c:1250
 __lock_acquire+0x16f/0x7d10 kernel/locking/lockdep.c:4891
 lock_acquire+0x19e/0x400 kernel/locking/lockdep.c:5623
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xb0/0x100 kernel/locking/spinlock.c:162
 gsmld_write+0x57/0x120 drivers/tty/n_gsm.c:2983
 do_tty_write drivers/tty/tty_io.c:1038 [inline]
 file_tty_write+0x557/0x910 drivers/tty/tty_io.c:1110
 call_write_iter include/linux/fs.h:2173 [inline]
 io_write io_uring/io_uring.c:3797 [inline]
 io_issue_sqe+0x32b7/0xb290 io_uring/io_uring.c:6927
 io_wq_submit_work+0x1a2/0x4a0 io_uring/io_uring.c:7071
 io_worker_handle_work+0x783/0xd10 io_uring/io-wq.c:588
 io_wqe_worker+0x3b6/0xe40 io_uring/io-wq.c:642
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>