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    Subjectsysfs: duplicate filename 'card0' can not be created

    Hello,

    Is this known? I got the error while connecting usb headphones, running
    vanilla 2.6.24.

    Error:

    [.361992] usb 1-1.3: new full speed USB device using ehci_hcd and address 13
    [.448232] usb 1-1.3: configuration #1 chosen from 1 choice
    [.506787] sysfs: duplicate filename 'card0' can not be created
    [.506796] WARNING: at fs/sysfs/dir.c:424 sysfs_add_one()
    [.506802] Pid: 794, comm: khubd Not tainted 2.6.24lcfs1 #1
    [.506819] [<c04a07cd>] sysfs_add_one+0x54/0xb7
    [.506835] [<c04a1415>] sysfs_create_link+0xbe/0x109
    [.506846] [<c05db991>] device_add+0x132/0x447
    [.506856] [<c057e9ba>] kobject_init+0x27/0x37
    [.506866] [<c05dbf12>] device_create+0x77/0x97
    [.506873] [<c0611fa1>] snd_card_register+0x3f/0x254
    [.506883] [<f083fa71>] usb_driver_claim_interface+0x6b/0x86 [usbcore]
    [.506944] [<f09b7cbb>] usb_audio_probe+0x6c7/0x76e [snd_usb_audio]
    [.506990] [<f083f960>] usb_probe_interface+0xa2/0xda [usbcore]
    [.507010] [<c05dd14b>] driver_sysfs_add+0x36/0x53
    [.507018] [<c05dd2ab>] driver_probe_device+0xdd/0x15a
    [.507025] [<c0688f9a>] klist_next+0x50/0x82
    [.507032] [<c05dd328>] __device_attach+0x0/0x5
    [.507037] [<c05dc7ce>] bus_for_each_drv+0x32/0x58
    [.507045] [<c05dd3a5>] device_attach+0x5d/0x70
    [.507049] [<c05dd328>] __device_attach+0x0/0x5
    [.507055] [<c05dc74f>] bus_attach_device+0x26/0x73
    [.507062] [<c05dbabc>] device_add+0x25d/0x447
    [.507073] [<f083e316>] usb_set_configuration+0x3f6/0x469 [usbcore]
    [.507099] [<f0844ba7>] generic_probe+0x50/0x91 [usbcore]
    [.507125] [<f083f763>] usb_probe_device+0x32/0x37 [usbcore]
    [.507142] [<c05dd2ab>] driver_probe_device+0xdd/0x15a
    [.507148] [<c0688f9a>] klist_next+0x50/0x82
    [.507154] [<c05dd328>] __device_attach+0x0/0x5
    [.507159] [<c05dc7ce>] bus_for_each_drv+0x32/0x58
    [.507167] [<c05dd3a5>] device_attach+0x5d/0x70
    [.507172] [<c05dd328>] __device_attach+0x0/0x5
    [.507177] [<c05dc74f>] bus_attach_device+0x26/0x73
    [.507184] [<c05dbabc>] device_add+0x25d/0x447
    [.507195] [<f0839c0f>] usb_new_device+0x41/0x7e [usbcore]
    [.507217] [<f083ad51>] hub_thread+0x6b6/0xa93 [usbcore]
    [.507243] [<c042fc93>] autoremove_wake_function+0x0/0x35
    [.507253] [<c06895dc>] schedule+0x1e2/0x22e
    [.507258] [<f083a69b>] hub_thread+0x0/0xa93 [usbcore]
    [.507276] [<c042fbd9>] kthread+0x36/0x5d
    [.507280] [<c042fba3>] kthread+0x0/0x5d
    [.507285] [<c0404a1b>] kernel_thread_helper+0x7/0x10
    [.507294] =======================
    [.511876] input: USB Audio as /devices/pci0000:00/0000:00:1e.0/0000:02:04.2/usb1/1-1/1-1.3/1-1.3:1.3/input/input7
    [.537041] input: USB HID v1.00 Device [USB Audio] on usb-0000:02:04.2-1.3

    --
    Luciano Rocha <luciano@eurotux.com>
    Eurotux Informática, S.A. <http://www.eurotux.com/>
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