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From: Greg KH <greg@kroah.com>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: Kernel development list <linux-kernel@vger.kernel.org>
Subject: Re: Question about (or bug in?) the kobject implementation
Date: Fri, 27 Feb 2004 12:17:44 -0800	[thread overview]
Message-ID: <20040227201744.GA11291@kroah.com> (raw)
In-Reply-To: <Pine.LNX.4.44L0.0402271457530.1225-100000@ida.rowland.org>

On Fri, Feb 27, 2004 at 03:06:32PM -0500, Alan Stern wrote:
> On Fri, 27 Feb 2004, Greg KH wrote:
> > Seriously, once kobject_del() is called, you can't safely call
> > kobject_get() anymore on that object.
> 
> Are you worried about the possibility of the refcount dropping to 0 and 
> the cleanup starting but then kobject_get() increasing the refcount again?

Exactly, that is where the problem could happen.

thanks,

greg k-h

  reply	other threads:[~2004-02-27 20:20 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-02-25 15:05 Question about (or bug in?) the kobject implementation Alan Stern
2004-02-27 19:48 ` Greg KH
2004-02-27 20:06   ` Alan Stern
2004-02-27 20:17     ` Greg KH [this message]
  -- strict thread matches above, loose matches on Subject: below --
2004-02-28  4:02 Alan Stern
2004-02-28  7:38 ` Michael Frank
2004-02-28 17:09   ` Alan Stern
2004-03-03 21:44 ` Greg KH
2004-03-03 22:11   ` Alan Stern
2004-03-03 22:16     ` Greg KH

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