comedi comedi0: c6xdigio: I/O port conflict (0x4000109,3) ------------[ cut here ]------------ Unexpected driver unregister! WARNING: CPU: 1 PID: 6596 at drivers/base/driver.c:273 driver_unregister+0x8e/0xa0 drivers/base/driver.c:273 Modules linked in: CPU: 1 UID: 0 PID: 6596 Comm: syz.0.16 Not tainted 6.16.0-rc7-syzkaller-g89be9a83ccf1 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:driver_unregister+0x8e/0xa0 drivers/base/driver.c:273 Code: e8 e7 58 b0 fc 48 89 df 5b 41 5e 41 5f e9 5a 57 ff ff e8 15 a5 14 fc eb 05 e8 0e a5 14 fc 48 c7 c7 80 f6 a4 8b e8 72 db d8 fb <0f> 0b 5b 41 5e 41 5f c3 cc cc cc cc cc cc cc cc cc cc 90 90 90 90 RSP: 0018:ffffc90003b5fa38 EFLAGS: 00010246 RAX: dc52d18738723b00 RBX: ffffffff8ed34c40 RCX: ffff88802ecf0000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1b3a4d8 R12: ffff88814c000800 R13: ffff88814c000920 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007f550123b6c0(0000) GS:ffff8881267b0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3305ffff CR3: 0000000033d90000 CR4: 00000000003526f0 Call Trace: comedi_device_detach+0x133/0x710 drivers/comedi/drivers.c:207 comedi_device_attach+0x564/0x660 drivers/comedi/drivers.c:1003 do_devconfig_ioctl drivers/comedi/comedi_fops.c:855 [inline] comedi_unlocked_ioctl+0x682/0xfa0 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+0x86/0x2e0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f550038e9a9 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:00007f550123b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f55005b5fa0 RCX: 00007f550038e9a9 RDX: 0000200000000540 RSI: 0000000040946400 RDI: 0000000000000003 RBP: 00007f5500410d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f55005b5fa0 R15: 00007ffff71f6878