comedi comedi3: c6xdigio: I/O port conflict (0x804f29,3) ------------[ cut here ]------------ Unexpected driver unregister! WARNING: drivers/base/driver.c:273 at driver_unregister+0x94/0xb0 drivers/base/driver.c:273, CPU#1: syz.0.17/6037 Modules linked in: CPU: 1 UID: 0 PID: 6037 Comm: syz.0.17 Not tainted syzkaller #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: 86 54 fc 48 89 df 5b 41 5e 41 5f e9 56 55 ff ff e8 01 65 b4 fb eb 05 e8 fa 64 b4 fb 90 48 c7 c7 80 66 2b 8c e8 cd 04 78 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:ffffc90003e37a20 EFLAGS: 00010246 RAX: 2789b1963b2ac100 RBX: ffffffff8f80ff00 RCX: ffff888024a00000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1c7a604 R12: ffff88802f10f038 R13: ffffffff8f80fe50 R14: 0000000000000000 R15: dffffc0000000000 FS: 0000555579bfa500(0000) GS:ffff8881258c4000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555579bfa808 CR3: 0000000069cc8000 CR4: 00000000003526f0 Call Trace: comedi_device_detach_locked+0x175/0x750 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+0x5ff/0x1020 drivers/comedi/comedi_fops.c:2178 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:598 [inline] __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:584 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: 0033:0x7ff9b1b8ebe9 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:00007ffe1ae0ead8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ff9b1dc5fa0 RCX: 00007ff9b1b8ebe9 RDX: 0000200000000180 RSI: 0000000040946400 RDI: 0000000000000003 RBP: 00007ff9b1c11e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ff9b1dc5fa0 R14: 00007ff9b1dc5fa0 R15: 0000000000000003