------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(!test_bit(class_idx, lock_classes_in_use))
WARNING: CPU: 1 PID: 12216 at kernel/locking/lockdep.c:4985 __lock_acquire+0x1086/0x54a0 kernel/locking/lockdep.c:4985
Modules linked in:
CPU: 1 PID: 12216 Comm: syz-executor.0 Not tainted 5.14.0-rc3-next-20210729-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__lock_acquire+0x1086/0x54a0 kernel/locking/lockdep.c:4985
Code: d2 0f 85 8b 31 00 00 44 8b 35 7e b2 12 0c 45 85 f6 0f 85 b3 fd ff ff 48 c7 c6 60 0e 8c 89 48 c7 c7 60 de 8b 89 e8 61 c5 8f 07 <0f> 0b e9 9c fd ff ff bd 02 00 00 00 e9 6e f5 ff ff 45 31 f6 e9 14
RSP: 0018:ffffc9000623f568 EFLAGS: 00010086
RAX: 0000000000000000 RBX: ffffffffab6de41a RCX: 0000000000000000
RDX: 0000000000040000 RSI: ffffffff815d8928 RDI: fffff52000c47e9f
RBP: ffff88807f2e603a R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815d26ce R11: 0000000000000000 R12: ffff88807f2e6018
R13: ffff88807f2e5580 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f4249bba700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4249bba718 CR3: 000000009de69000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 lock_acquire kernel/locking/lockdep.c:5625 [inline]
 lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:159
 complete_all+0x13/0x60 kernel/sched/completion.c:63
 __fw_state_set drivers/base/firmware_loader/firmware.h:121 [inline]
 fw_state_aborted drivers/base/firmware_loader/firmware.h:126 [inline]
 __fw_load_abort drivers/base/firmware_loader/fallback.c:98 [inline]
 __fw_load_abort drivers/base/firmware_loader/fallback.c:88 [inline]
 kill_pending_fw_fallback_reqs+0x21b/0x370 drivers/base/firmware_loader/fallback.c:119
 fw_pm_notify+0xa2/0x140 drivers/base/firmware_loader/main.c:1447
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
 notifier_call_chain_robust kernel/notifier.c:118 [inline]
 blocking_notifier_call_chain_robust kernel/notifier.c:302 [inline]
 blocking_notifier_call_chain_robust+0xc4/0x160 kernel/notifier.c:290
 pm_notifier_call_chain_robust+0x26/0x60 kernel/power/main.c:87
 snapshot_open+0x190/0x2a0 kernel/power/user.c:75
 misc_open+0x372/0x4a0 drivers/char/misc.c:141
 chrdev_open+0x266/0x770 fs/char_dev.c:414
 do_dentry_open+0x4c8/0x11d0 fs/open.c:826
 do_open fs/namei.c:3374 [inline]
 path_openat+0x1c23/0x27f0 fs/namei.c:3507
 do_filp_open+0x1aa/0x400 fs/namei.c:3534
 do_sys_openat2+0x16d/0x420 fs/open.c:1204
 do_sys_open fs/open.c:1220 [inline]
 __do_sys_openat fs/open.c:1236 [inline]
 __se_sys_openat fs/open.c:1231 [inline]
 __x64_sys_openat+0x13f/0x1f0 fs/open.c:1231
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665e9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4249bba188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056c0f0 RCX: 00000000004665e9
RDX: 0000000000000000 RSI: 0000000020000180 RDI: ffffffffffffff9c
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c0f0
R13: 00007ffff742f40f R14: 00007f4249bba300 R15: 0000000000022000