https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_5186_54/fi-snb-2600/igt@runner@aborted.html

<6>[    3.558590] input: HDA Intel PCH Front Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input3
<4>[    3.558769] sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:1b.0/sound/card0/input3'
<4>[    3.558773] CPU: 4 PID: 322 Comm: systemd-udevd Not tainted 4.20.0-rc3-g890ed44fe261-repeat_15+ #1
<4>[    3.558775] Hardware name: Dell Inc. XPS 8300  /0Y2MRG, BIOS A06 10/17/2011
<4>[    3.558776] Call Trace:
<4>[    3.558782]  dump_stack+0x67/0x9b
<4>[    3.558788]  sysfs_warn_dup+0x51/0x60
<4>[    3.558793]  sysfs_create_dir_ns+0xa9/0xc0
<4>[    3.558799]  kobject_add_internal+0xac/0x2d0
<4>[    3.558804]  kobject_add+0x71/0xd0
<4>[    3.558815]  device_add+0x110/0x670
<4>[    3.558819]  ? rcu_read_lock_sched_held+0x6f/0x80
<4>[    3.558823]  ? __kmalloc+0x262/0x2e0
<4>[    3.558829]  input_register_device+0x182/0x4f0
<4>[    3.558836]  snd_jack_dev_register+0x94/0xc0
<4>[    3.558840]  __snd_device_register.part.0+0x16/0x30
<4>[    3.558843]  snd_device_register_all+0x33/0x50
<4>[    3.558847]  snd_card_register+0x5f/0x1d0
<4>[    3.558855]  ? snd_hda_codec_build_controls+0xac/0x200 [snd_hda_codec]
<4>[    3.558863]  ? hda_codec_driver_probe+0x120/0x140 [snd_hda_codec]
<4>[    3.558868]  hda_codec_driver_probe+0x120/0x140 [snd_hda_codec]
<4>[    3.558872]  really_probe+0xf3/0x3e0
<4>[    3.558878]  driver_probe_device+0x10a/0x120
<4>[    3.558882]  __driver_attach+0xdb/0x100
<4>[    3.558884]  ? driver_probe_device+0x120/0x120
<4>[    3.558887]  ? driver_probe_device+0x120/0x120
<4>[    3.558890]  bus_for_each_dev+0x74/0xc0
<4>[    3.558896]  bus_add_driver+0x15f/0x250
<4>[    3.558899]  ? 0xffffffffc0266000
<4>[    3.558903]  driver_register+0x56/0xe0
<4>[    3.558906]  ? 0xffffffffc0266000
<4>[    3.558908]  do_one_initcall+0x58/0x2e0
<4>[    3.558913]  ? do_init_module+0x1d/0x1ea
<4>[    3.558915]  ? rcu_read_lock_sched_held+0x6f/0x80
<4>[    3.558918]  ? kmem_cache_alloc_trace+0x264/0x290
<4>[    3.558924]  do_init_module+0x56/0x1ea
<4>[    3.558928]  load_module+0x2714/0x29f0
<4>[    3.558948]  ? __se_sys_finit_module+0xd3/0xf0
<4>[    3.558951]  __se_sys_finit_module+0xd3/0xf0
<4>[    3.558964]  do_syscall_64+0x55/0x190
<4>[    3.558968]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4>[    3.558970] RIP: 0033:0x7f40257d3839
<4>[    3.558973] Code: 00 f3 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 8b 0d 1f f6 2c 00 f7 d8 64 89 01 48
<4>[    3.558975] RSP: 002b:00007ffd553f9e68 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
<4>[    3.558978] RAX: ffffffffffffffda RBX: 0000560085bcc5f0 RCX: 00007f40257d3839
<4>[    3.558980] RDX: 0000000000000000 RSI: 00007f40254b2145 RDI: 000000000000000f
<4>[    3.558981] RBP: 00007f40254b2145 R08: 0000000000000000 R09: 00007ffd553f9f80
<4>[    3.558983] R10: 000000000000000f R11: 0000000000000246 R12: 0000000000000000
<4>[    3.558985] R13: 0000560085bc32e0 R14: 0000000000020000 R15: 0000560085bcc5f0
<3>[    3.559004] kobject_add_internal failed for input3 with -EEXIST, don't try to register things with the same name in the same directory.