comedi comedi1: c6xdigio: I/O port conflict (0x401,3) ------------[ cut here ]------------ Unexpected driver unregister! WARNING: CPU: 0 PID: 14358 at drivers/base/driver.c:270 driver_unregister+0x92/0xa0 drivers/base/driver.c:270 Modules linked in: CPU: 0 PID: 14358 Comm: syz.5.1685 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 RIP: 0010:driver_unregister+0x92/0xa0 drivers/base/driver.c:270 Code: e8 53 f7 da fc 48 89 df 5b 41 5e 41 5f e9 e6 5a ff ff e8 f1 89 4d fc eb 05 e8 ea 89 4d fc 48 c7 c7 00 23 21 8b e8 4e fe 17 fc <0f> 0b 5b 41 5e 41 5f c3 cc cc cc cc cc cc 66 0f 1f 00 41 57 41 56 RSP: 0018:ffffc9000c3e7a60 EFLAGS: 00010246 RAX: 98821aca84111800 RBX: ffffffff8de99da0 RCX: 0000000000080000 RDX: ffffc9001be42000 RSI: 00000000000093bb RDI: 00000000000093bc RBP: 0000000000000001 R08: ffffc9000c3e7667 R09: 1ffff9200187cecc R10: dffffc0000000000 R11: fffff5200187cecd R12: ffff88814bff8838 R13: ffffffff8de99cf0 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007fbcdebd56c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2e919ff8 CR3: 0000000021031000 CR4: 00000000003506f0 Call Trace: comedi_device_detach_locked+0x172/0x710 drivers/comedi/drivers.c:206 comedi_device_detach drivers/comedi/drivers.c:214 [inline] comedi_device_attach+0x5cd/0x710 drivers/comedi/drivers.c:1010 do_devconfig_ioctl drivers/comedi/comedi_fops.c:872 [inline] comedi_unlocked_ioctl+0x606/0xfe0 drivers/comedi/comedi_fops.c:2178 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl+0xfd/0x170 fs/ioctl.c:857 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fbce098eec9 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:00007fbcdebd5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fbce0be6090 RCX: 00007fbce098eec9 RDX: 0000200000000080 RSI: 0000000040946400 RDI: 0000000000000003 RBP: 00007fbce0a11f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fbce0be6128 R14: 00007fbce0be6090 R15: 00007ffc44deef28