comedi comedi0: c6xdigio: I/O port conflict (0x4,3)
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Unexpected driver unregister!
WARNING: drivers/base/driver.c:273 at driver_unregister+0x94/0xb0 drivers/base/driver.c:273, CPU#0: syz.6.3267/18797
Modules linked in:
CPU: 0 UID: 0 PID: 18797 Comm: syz.6.3267 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:driver_unregister+0x94/0xb0 drivers/base/driver.c:273
Code: eb 94 fc 48 89 df 5b 41 5e 41 5f e9 76 52 ff ff e8 21 b7 f0 fb eb 05 e8 1a b7 f0 fb 90 48 c7 c7 c0 51 e7 8b e8 dd d5 b2 fb 90 <0f> 0b 90 90 5b 41 5e 41 5f c3 cc cc cc cc cc cc cc cc cc cc cc cc
RSP: 0018:ffffc9000bd27a20 EFLAGS: 00010246
RAX: 2e3610601ff59000 RBX: ffffffff8f1b0480 RCX: 0000000000080000
RDX: ffffc90013462000 RSI: 0000000000005e1e RDI: 0000000000005e1f
RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bba720 R12: ffff88802f5bc838
R13: ffffffff8f1b03d0 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f08f79f66c0(0000) GS:ffff888125eba000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000002f9ee000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 comedi_device_detach_locked+0x178/0x750 drivers/comedi/drivers.c:207
 comedi_device_detach drivers/comedi/drivers.c:215 [inline]
 comedi_device_attach+0x5d4/0x720 drivers/comedi/drivers.c:1011
 do_devconfig_ioctl drivers/comedi/comedi_fops.c:872 [inline]
 comedi_unlocked_ioctl+0x645/0x1020 drivers/comedi/comedi_fops.c:2178
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f08f978f749
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:00007f08f79f6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f08f99e6090 RCX: 00007f08f978f749
RDX: 0000200000000540 RSI: 0000000040946400 RDI: 0000000000000004
RBP: 00007f08f9813f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f08f99e6128 R14: 00007f08f99e6090 R15: 00007ffffe352a18
 </TASK>