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Date: Fri, 27 Feb 2004 12:17:44 -0800
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
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References: <20040227194855.GB10864@kroah.com> <Pine.LNX.4.44L0.0402271457530.1225-100000@ida.rowland.org>
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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