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

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Date:	Wed, 09 Mar 2011 20:12:18 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	Steven Rostedt <rostedt@...dmis.org>
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

At Wed, 09 Mar 2011 12:21:53 -0500,
Steven Rostedt wrote:
> 
> 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)

Thanks for a quick check!
I merged the patch now.


Takashi
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