linux-kernel - Re: [BUG] WARNING: at fs/sysfs/dir.c:455 sysfs_add

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Date:	Wed, 09 Mar 2011 12:21:53 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Takashi Iwai <tiwai@...e.de>
Cc:	Greg KH <gregkh@...e.de>, Jaroslav Kysela <perex@...ex.cz>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	alsa-devel@...a-project.org
Subject: Re: [BUG] WARNING: at fs/sysfs/dir.c:455 sysfs_add_one+0x83/0x95

On Wed, 2011-03-09 at 17:38 +0100, Takashi Iwai wrote:

> Could you try the patch below?  Totally untested.

It seems to work. I added the patch and the warning is gone, and removed
it, and it reappeared. Now, I don't have and speakers attached to this
test box, so I never tested if sound works ;)

> 
> 
> Takashi
> 
> ---
> From: Takashi Iwai <tiwai@...e.de>
> Subject: [PATCH] sound: Use sound_register_*() for additional OSS minor devices
> 
> Since OSS driver creates the device entries for /dev/audio* and
> /dev/dspW* by itself without coping with sound_core, it leads to
> conflicts with others and let sysfs spewing warnings.
> 
> This patch rewrites the registration part of OSS driver to use
> the standard method also for additional minor devices.

Reported-by: Steven Rostedt <rostedt@...dmis.org> (with ktest.pl)
Tested-by: Steven Rostedt <rostedt@...dmis.org> (with ktest.pl)

-- Steve

> 
> Signed-off-by: Takashi Iwai <tiwai@...e.de>
> ---


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