* sysfs: cannot create duplicate filename '/bus/platform/devices/twl4030-codec'
@ 2014-01-25 15:35 Belisko Marek
2014-01-27 10:24 ` Peter Ujfalusi
0 siblings, 1 reply; 2+ messages in thread
From: Belisko Marek @ 2014-01-25 15:35 UTC (permalink / raw)
To: LKML; +Cc: peter.ujfalusi
Hello,
booting linux-next (not actual but older from 20.12 gives me following warning).
I'm booting gta04 device via devicetree with added sound node (copied
from beagleboard)
[ 1.962524] ------------[ cut here ]------------
[ 1.967498] WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:52
sysfs_warn_dup+0x70/0x90()
[ 1.975433] sysfs: cannot create duplicate filename
'/bus/platform/devices/twl4030-codec'
[ 1.983947] Modules linked in:
[ 1.987182] CPU: 0 PID: 1 Comm: swapper/0 Not tainted
3.13.0-rc4-next-20131220-00021-gb76a93c-dirty #7
[ 1.996948] [<c00150a0>] (unwind_backtrace) from [<c0011d08>]
(show_stack+0x10/0x14)
[ 2.005096] [<c0011d08>] (show_stack) from [<c055d578>]
(dump_stack+0x7c/0x94)
[ 2.012634] [<c055d578>] (dump_stack) from [<c003fa18>]
(warn_slowpath_common+0x6c/0x90)
[ 2.021118] [<c003fa18>] (warn_slowpath_common) from [<c003fa6c>]
(warn_slowpath_fmt+0x30/0x40)
[ 2.030212] [<c003fa6c>] (warn_slowpath_fmt) from [<c0176df8>]
(sysfs_warn_dup+0x70/0x90)
[ 2.038787] [<c0176df8>] (sysfs_warn_dup) from [<c01770f0>]
(sysfs_do_create_link_sd.isra.2+0xb0/0xb8)
[ 2.049407] [<c01770f0>] (sysfs_do_create_link_sd.isra.2) from
[<c0370498>] (bus_add_device+0x108/0x194)
[ 2.059387] [<c0370498>] (bus_add_device) from [<c036ea88>]
(device_add+0x3cc/0x520)
[ 2.067504] [<c036ea88>] (device_add) from [<c0372534>]
(platform_device_add+0xac/0x210)
[ 2.075958] [<c0372534>] (platform_device_add) from [<c0390358>]
(mfd_add_device+0x10c/0x31c)
[ 2.084899] [<c0390358>] (mfd_add_device) from [<c0390608>]
(mfd_add_devices+0xa0/0x100)
[ 2.093322] [<c0390608>] (mfd_add_devices) from [<c038f268>]
(twl4030_audio_probe+0x178/0x2ac)
[ 2.102325] [<c038f268>] (twl4030_audio_probe) from [<c03727c0>]
(platform_drv_probe+0x18/0x48)
[ 2.111419] [<c03727c0>] (platform_drv_probe) from [<c0371048>]
(driver_probe_device+0x110/0x22c)
[ 2.120697] [<c0371048>] (driver_probe_device) from [<c036f6f0>]
(bus_for_each_drv+0x58/0x8c)
[ 2.129608] [<c036f6f0>] (bus_for_each_drv) from [<c0370f04>]
(device_attach+0x74/0x8c)
[ 2.138000] [<c0370f04>] (device_attach) from [<c03705ac>]
(bus_probe_device+0x88/0xb0)
[ 2.146392] [<c03705ac>] (bus_probe_device) from [<c036eadc>]
(device_add+0x420/0x520)
[ 2.154663] [<c036eadc>] (device_add) from [<c0372534>]
(platform_device_add+0xac/0x210)
[ 2.163085] [<c0372534>] (platform_device_add) from [<c0390358>]
(mfd_add_device+0x10c/0x31c)
[ 2.171997] [<c0390358>] (mfd_add_device) from [<c0390608>]
(mfd_add_devices+0xa0/0x100)
[ 2.180480] [<c0390608>] (mfd_add_devices) from [<c038f268>]
(twl4030_audio_probe+0x178/0x2ac)
[ 2.189483] [<c038f268>] (twl4030_audio_probe) from [<c03727c0>]
(platform_drv_probe+0x18/0x48)
[ 2.198577] [<c03727c0>] (platform_drv_probe) from [<c0371048>]
(driver_probe_device+0x110/0x22c)
[ 2.207885] [<c0371048>] (driver_probe_device) from [<c037123c>]
(__driver_attach+0x94/0x98)
[ 2.216705] [<c037123c>] (__driver_attach) from [<c036f650>]
(bus_for_each_dev+0x60/0x94)
[ 2.225280] [<c036f650>] (bus_for_each_dev) from [<c0370824>]
(bus_add_driver+0x144/0x1f0)
[ 2.233886] [<c0370824>] (bus_add_driver) from [<c037181c>]
(driver_register+0x78/0xf8)
[ 2.242248] [<c037181c>] (driver_register) from [<c0008918>]
(do_one_initcall+0xe8/0x14c)
[ 2.250823] [<c0008918>] (do_one_initcall) from [<c07c2c00>]
(kernel_init_freeable+0x104/0x1c8)
[ 2.259948] [<c07c2c00>] (kernel_init_freeable) from [<c0558570>]
(kernel_init+0x8/0x118)
[ 2.268493] [<c0558570>] (kernel_init) from [<c000e368>]
(ret_from_fork+0x14/0x2c)
[ 2.276550] ---[ end trace 371733b66b0dc450 ]---
[ 2.283081] twl4030-audio: probe of twl4030-codec failed with error -17
I can see that probe function is called 3 times (not sure where it comes from).
Any pointers?
Thanks,
marek
--
as simple and primitive as possible
-------------------------------------------------
Marek Belisko - OPEN-NANDRA
Freelance Developer
Ruska Nova Ves 219 | Presov, 08005 Slovak Republic
Tel: +421 915 052 184
skype: marekwhite
twitter: #opennandra
web: http://open-nandra.com
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: sysfs: cannot create duplicate filename '/bus/platform/devices/twl4030-codec'
2014-01-25 15:35 sysfs: cannot create duplicate filename '/bus/platform/devices/twl4030-codec' Belisko Marek
@ 2014-01-27 10:24 ` Peter Ujfalusi
0 siblings, 0 replies; 2+ messages in thread
From: Peter Ujfalusi @ 2014-01-27 10:24 UTC (permalink / raw)
To: Belisko Marek, LKML
Hi,
On 01/25/2014 05:35 PM, Belisko Marek wrote:
> Hello,
>
> booting linux-next (not actual but older from 20.12 gives me following warning).
> I'm booting gta04 device via devicetree with added sound node (copied
> from beagleboard)
Not sure what goes wrong on your board. I just tested today's mainline and
linux-next (27.01.2014) on beagle-xm and I don't see anything suspicious
regarding to twl4030-audio.
>
> [ 1.962524] ------------[ cut here ]------------
> [ 1.967498] WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:52
> sysfs_warn_dup+0x70/0x90()
> [ 1.975433] sysfs: cannot create duplicate filename
> '/bus/platform/devices/twl4030-codec'
> [ 1.983947] Modules linked in:
> [ 1.987182] CPU: 0 PID: 1 Comm: swapper/0 Not tainted
> 3.13.0-rc4-next-20131220-00021-gb76a93c-dirty #7
> [ 1.996948] [<c00150a0>] (unwind_backtrace) from [<c0011d08>]
> (show_stack+0x10/0x14)
> [ 2.005096] [<c0011d08>] (show_stack) from [<c055d578>]
> (dump_stack+0x7c/0x94)
> [ 2.012634] [<c055d578>] (dump_stack) from [<c003fa18>]
> (warn_slowpath_common+0x6c/0x90)
> [ 2.021118] [<c003fa18>] (warn_slowpath_common) from [<c003fa6c>]
> (warn_slowpath_fmt+0x30/0x40)
> [ 2.030212] [<c003fa6c>] (warn_slowpath_fmt) from [<c0176df8>]
> (sysfs_warn_dup+0x70/0x90)
> [ 2.038787] [<c0176df8>] (sysfs_warn_dup) from [<c01770f0>]
> (sysfs_do_create_link_sd.isra.2+0xb0/0xb8)
> [ 2.049407] [<c01770f0>] (sysfs_do_create_link_sd.isra.2) from
> [<c0370498>] (bus_add_device+0x108/0x194)
> [ 2.059387] [<c0370498>] (bus_add_device) from [<c036ea88>]
> (device_add+0x3cc/0x520)
> [ 2.067504] [<c036ea88>] (device_add) from [<c0372534>]
> (platform_device_add+0xac/0x210)
> [ 2.075958] [<c0372534>] (platform_device_add) from [<c0390358>]
> (mfd_add_device+0x10c/0x31c)
> [ 2.084899] [<c0390358>] (mfd_add_device) from [<c0390608>]
> (mfd_add_devices+0xa0/0x100)
> [ 2.093322] [<c0390608>] (mfd_add_devices) from [<c038f268>]
> (twl4030_audio_probe+0x178/0x2ac)
> [ 2.102325] [<c038f268>] (twl4030_audio_probe) from [<c03727c0>]
> (platform_drv_probe+0x18/0x48)
> [ 2.111419] [<c03727c0>] (platform_drv_probe) from [<c0371048>]
> (driver_probe_device+0x110/0x22c)
> [ 2.120697] [<c0371048>] (driver_probe_device) from [<c036f6f0>]
> (bus_for_each_drv+0x58/0x8c)
> [ 2.129608] [<c036f6f0>] (bus_for_each_drv) from [<c0370f04>]
> (device_attach+0x74/0x8c)
> [ 2.138000] [<c0370f04>] (device_attach) from [<c03705ac>]
> (bus_probe_device+0x88/0xb0)
> [ 2.146392] [<c03705ac>] (bus_probe_device) from [<c036eadc>]
> (device_add+0x420/0x520)
> [ 2.154663] [<c036eadc>] (device_add) from [<c0372534>]
> (platform_device_add+0xac/0x210)
> [ 2.163085] [<c0372534>] (platform_device_add) from [<c0390358>]
> (mfd_add_device+0x10c/0x31c)
> [ 2.171997] [<c0390358>] (mfd_add_device) from [<c0390608>]
> (mfd_add_devices+0xa0/0x100)
> [ 2.180480] [<c0390608>] (mfd_add_devices) from [<c038f268>]
> (twl4030_audio_probe+0x178/0x2ac)
> [ 2.189483] [<c038f268>] (twl4030_audio_probe) from [<c03727c0>]
> (platform_drv_probe+0x18/0x48)
> [ 2.198577] [<c03727c0>] (platform_drv_probe) from [<c0371048>]
> (driver_probe_device+0x110/0x22c)
> [ 2.207885] [<c0371048>] (driver_probe_device) from [<c037123c>]
> (__driver_attach+0x94/0x98)
> [ 2.216705] [<c037123c>] (__driver_attach) from [<c036f650>]
> (bus_for_each_dev+0x60/0x94)
> [ 2.225280] [<c036f650>] (bus_for_each_dev) from [<c0370824>]
> (bus_add_driver+0x144/0x1f0)
> [ 2.233886] [<c0370824>] (bus_add_driver) from [<c037181c>]
> (driver_register+0x78/0xf8)
> [ 2.242248] [<c037181c>] (driver_register) from [<c0008918>]
> (do_one_initcall+0xe8/0x14c)
> [ 2.250823] [<c0008918>] (do_one_initcall) from [<c07c2c00>]
> (kernel_init_freeable+0x104/0x1c8)
> [ 2.259948] [<c07c2c00>] (kernel_init_freeable) from [<c0558570>]
> (kernel_init+0x8/0x118)
> [ 2.268493] [<c0558570>] (kernel_init) from [<c000e368>]
> (ret_from_fork+0x14/0x2c)
> [ 2.276550] ---[ end trace 371733b66b0dc450 ]---
> [ 2.283081] twl4030-audio: probe of twl4030-codec failed with error -17
>
> I can see that probe function is called 3 times (not sure where it comes from).
> Any pointers?
Indeed it seams we have several probes. Do you have the audio built in or as
modules? Can you reverse it and see if that changes anything? FWIW I have
audio built in.
--
Péter
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2014-01-25 15:35 sysfs: cannot create duplicate filename '/bus/platform/devices/twl4030-codec' Belisko Marek
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