comedi comedi0: c6xdigio: a I/O base address must be specified
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Unexpected driver unregister!
WARNING: CPU: 0 PID: 5849 at drivers/base/driver.c:273 driver_unregister+0x94/0xb0 drivers/base/driver.c:273
Modules linked in:
CPU: 0 UID: 0 PID: 5849 Comm: syz-executor665 Not tainted 6.16.0-rc7-syzkaller-00140-gec2df4364666 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:driver_unregister+0x94/0xb0 drivers/base/driver.c:273
Code: da 6b fc 48 89 df 5b 41 5e 41 5f e9 d6 55 ff ff e8 91 f7 d0 fb eb 05 e8 8a f7 d0 fb 90 48 c7 c7 e0 94 08 8c e8 1d e7 94 fb 90 <0f> 0b 90 90 5b 41 5e 41 5f e9 ce 34 7a 05 cc cc cc cc cc cc cc cc
RSP: 0018:ffffc900041bfa38 EFLAGS: 00010246
RAX: b8ca0ad4ee46db00 RBX: ffffffff8f3c9d40 RCX: ffff88807dd13c00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfaa6c R12: ffff88802f7ad000
R13: ffff88802f7ad120 R14: 0000000000000000 R15: dffffc0000000000
FS:  000055555c018380(0000) GS:ffff888125c57000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000005fdeb8 CR3: 0000000074e58000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 comedi_device_detach+0x134/0x720 drivers/comedi/drivers.c:207
 comedi_device_attach+0x568/0x670 drivers/comedi/drivers.c:1003
 do_devconfig_ioctl drivers/comedi/comedi_fops.c:855 [inline]
 comedi_unlocked_ioctl+0x686/0xfc0 drivers/comedi/comedi_fops.c:2156
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7ce06ed3e9
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe2dd5a568 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffe2dd5a738 RCX: 00007f7ce06ed3e9
RDX: 0000200000000080 RSI: 0000000040946400 RDI: 0000000000000003
RBP: 00007f7ce0760610 R08: 0000000000000000 R09: 00007ffe2dd5a738
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffe2dd5a728 R14: 0000000000000001 R15: 0000000000000001
 </TASK>