comedi comedi3: c6xdigio: I/O port conflict (0x10,3) ------------[ cut here ]------------ Unexpected driver unregister! WARNING: CPU: 0 PID: 4739 at drivers/base/driver.c:263 driver_unregister+0x8e/0xa0 drivers/base/driver.c:263 Modules linked in: CPU: 0 PID: 4739 Comm: syz.2.77 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:driver_unregister+0x8e/0xa0 drivers/base/driver.c:263 Code: e8 97 16 22 fd 48 89 df 5b 41 5e 41 5f e9 ea 63 ff ff e8 f5 77 ae fc eb 05 e8 ee 77 ae fc 48 c7 c7 a0 d1 7b 8a e8 c2 53 d5 04 <0f> 0b 5b 41 5e 41 5f c3 00 00 cc cc 00 00 cc cc 00 00 41 57 41 56 RSP: 0018:ffffc90003dffa60 EFLAGS: 00010246 RAX: c211f3c9cc475d00 RBX: ffffffff8d12c880 RCX: 0000000000080000 RDX: ffffc9000c631000 RSI: 000000000000afb9 RDI: 000000000000afba RBP: 0000000000000001 R08: dffffc0000000000 R09: ffffed10172067b0 R10: ffffed10172067b0 R11: 1ffff110172067af R12: ffff88814c999038 R13: ffffffff8d12c7d0 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007f4c426be6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4c4269cf98 CR3: 000000005c446000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: comedi_device_detach_locked+0x16e/0x710 drivers/comedi/drivers.c:207 comedi_device_detach drivers/comedi/drivers.c:215 [inline] comedi_device_attach+0x5c9/0x700 drivers/comedi/drivers.c:1011 do_devconfig_ioctl drivers/comedi/comedi_fops.c:868 [inline] comedi_unlocked_ioctl+0x5a6/0x1050 drivers/comedi/comedi_fops.c:2173 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f4c44456fc9 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:00007f4c426be038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f4c446adfa0 RCX: 00007f4c44456fc9 RDX: 00002000000000c0 RSI: 0000000040946400 RDI: 0000000000000003 RBP: 00007f4c444d9f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4c446ae038 R14: 00007f4c446adfa0 R15: 00007ffdfc3dce88