comedi comedi1: c6xdigio: I/O port conflict (0x401,3)
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Unexpected driver unregister!
WARNING: drivers/base/driver.c:273 at driver_unregister+0x94/0xb0, CPU#1: syz.2.419/6951
Modules linked in:
CPU: 1 UID: 0 PID: 6951 Comm: syz.2.419 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: e6 58 fc 48 89 df 5b 41 5e 41 5f e9 56 55 ff ff e8 21 3f b7 fb eb 05 e8 1a 3f b7 fb 90 48 c7 c7 e0 33 2a 8c e8 2d af 7a fb 90 <0f> 0b 90 90 5b 41 5e 41 5f e9 7e 68 79 05 cc cc cc cc cc cc cc cc
RSP: 0018:ffffc900071ffa20 EFLAGS: 00010246
RAX: afd9ca755b3a8200 RBX: ffffffff8f5fc4e0 RCX: 0000000000080000
RDX: ffffc90004274000 RSI: 000000000000104b RDI: 000000000000104c
RBP: 0000000000000001 R08: ffff888136624293 R09: 1ffff11026cc4852
R10: dffffc0000000000 R11: ffffed1026cc4853 R12: ffff88810ecee038
R13: ffffffff8f5fc430 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f1bbcff66c0(0000) GS:ffff8881a39fc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000001c000 CR3: 0000000108614000 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: 0033:0x7f1bbed8ec29
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:00007f1bbcff6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f1bbefd5fa0 RCX: 00007f1bbed8ec29
RDX: 0000200000000080 RSI: 0000000040946400 RDI: 0000000000000003
RBP: 00007f1bbee11e41 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1bbefd6038 R14: 00007f1bbefd5fa0 R15: 00007fff9d1c1278
 </TASK>
