comedi comedi1: c6xdigio: I/O port conflict (0x401,3)
------------[ cut here ]------------
Unexpected driver unregister!
WARNING: drivers/base/driver.c:273 at driver_unregister+0x94/0xb0, CPU#1: syz.1.509/7232
Modules linked in:
CPU: 1 UID: 0 PID: 7232 Comm: syz.1.509 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:driver_unregister+0x94/0xb0
Code: c4 59 fc 48 89 df 5b 41 5e 41 5f e9 56 55 ff ff e8 51 ab b8 fb eb 05 e8 4a ab b8 fb 90 48 c7 c7 c0 13 2a 8c e8 9d 21 7c fb 90 <0f> 0b 90 90 5b 41 5e 41 5f e9 8e fe 78 05 cc cc cc cc cc cc cc cc
RSP: 0018:ffffc90002fb7a20 EFLAGS: 00010246
RAX: dc1910edefd59800 RBX: ffffffff8f5f7ee0 RCX: 0000000000080000
RDX: ffffc90020cf9000 RSI: 0000000000001029 RDI: 000000000000102a
RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1c3a654 R12: ffff888027de1038
R13: ffffffff8f5f7e30 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f1c23c0e6c0(0000) GS:ffff8881a3a0a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000113e4a000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 comedi_device_detach_locked+0x178/0x750
 comedi_device_attach+0x5d4/0x720
 comedi_unlocked_ioctl+0x5ff/0x1020
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0xfa/0xfa0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1c22d8ec29
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:00007f1c23c0e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f1c22fd6090 RCX: 00007f1c22d8ec29
RDX: 0000200000000080 RSI: 0000000040946400 RDI: 0000000000000003
RBP: 00007f1c22e11e41 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1c22fd6128 R14: 00007f1c22fd6090 R15: 00007ffe24a4b728
 </TASK>
