linux-kernel - Re: 2.6.23-rc1-mm2: Fix crash in sysfs_hash_and

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Message-ID: <m1ps25n6jk.fsf@ebiederm.dsl.xmission.com>
Date:	Thu, 02 Aug 2007 12:19:11 -0600
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Tejun Heo <htejun@...il.com>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Greg KH <greg@...ah.com>
Subject: Re: 2.6.23-rc1-mm2: Fix crash in sysfs_hash_and_remove

Tejun Heo <htejun@...il.com> writes:

> Rafael J. Wysocki wrote:
>> From: Rafael J. Wysocki <rjw@...k.pl>
>> 
>> My test box crashes during suspend, while the nonboot CPUs are being disabled,
>> because sysfs_hash_and_remove() doesn't check if dir_sd passed to it is not
>> NULL.  Fix it.
>> 
>> Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
>
> It got broken when shadow support was added.  The shadow support in -mm1
> will be dropped and Eric is preparing a new version.  So, this fix
> probably won't be necessary from -mm2.

Agreed.  That check is in my current development tree.

Eric
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