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Unexpected driver unregister!
WARNING: CPU: 1 PID: 6945 at drivers/base/driver.c:263 driver_unregister+0x8e/0xa0 drivers/base/driver.c:263
Modules linked in:
CPU: 1 PID: 6945 Comm: syz.0.551 Not tainted 5.15.187-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:driver_unregister+0x8e/0xa0 drivers/base/driver.c:263
Code: e8 57 89 22 fd 48 89 df 5b 41 5e 41 5f e9 ea 63 ff ff e8 a5 e1 ad fc eb 05 e8 9e e1 ad fc 48 c7 c7 80 89 7b 8a e8 62 e6 d4 04 <0f> 0b 5b 41 5e 41 5f c3 00 00 cc cc 00 00 cc cc 00 00 41 57 41 56
RSP: 0018:ffffc90005547a58 EFLAGS: 00010246
RAX: 61c313372ec18e00 RBX: ffffffff8d12ba20 RCX: ffff88801cec3b80
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: dffffc0000000000 R09: ffffed10172267a8
R10: ffffed10172267a8 R11: 1ffff110172267a7 R12: ffff88814cc8a800
R13: ffff88814cc8a920 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007efc1d4b06c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6baeebd178 CR3: 0000000052260000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 comedi_device_detach+0x12d/0x6e0 drivers/comedi/drivers.c:207
 comedi_device_attach+0x55d/0x650 drivers/comedi/drivers.c:1000
 do_devconfig_ioctl drivers/comedi/comedi_fops.c:851 [inline]
 comedi_unlocked_ioctl+0x5ec/0xe90 drivers/comedi/comedi_fops.c:2131
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7efc1f648929
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007efc1d4b0038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007efc1f86ffa0 RCX: 00007efc1f648929
RDX: 0000200000000100 RSI: 0000000040946400 RDI: 0000000000000003
RBP: 00007efc1f6cab39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007efc1f86ffa0 R15: 00007ffd11b1d038
 </TASK>