linux-kernel - Re: kref refcounting breakage in mainline

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Message-ID: <20070315145414.GA18542@kroah.com>
Date:	Thu, 15 Mar 2007 07:54:14 -0700
From:	Greg KH <greg@...ah.com>
To:	Mike Galbraith <efault@....de>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Tejun Heo <htejun@...il.com>,
	Kay Sievers <kay.sievers@...y.org>,
	linux-kernel@...r.kernel.org, Adrian Bunk <bunk@...sta.de>
Subject: Re: kref refcounting breakage in mainline

On Thu, Mar 15, 2007 at 11:19:20AM +0100, Mike Galbraith wrote:
> On Thu, 2007-03-15 at 01:06 -0700, Greg KH wrote:
> 
> > That's good.  But why don't we have a module name for this driver?
> > 
> > And if we don't have a module name, why would there be a symlink to
> > remove?  That's what is keeping your module from unloading, right?
> 
> You keep saying "module", and that's making me a bit nervous ;-)
> 
> Just to be sure we're not talking past each other, when you say module,
> don't mean the modprobe kind... i hope.  This "module" as in driver is
> compiled in.  (said that before, but you may have missed it)

Ahh, that changes everything here, thanks for letting me know, I had
missed this.

The problem is that the module_init() is failing, yet this isn't really
a module, it's built into the kernel.  So some of the module teardown
logic is dieing when it thinks that we really have a full module
structure here (owner and such).

I'll look at this further tomorrow, as I'm travelling pretty much all
day today, sorry.

thanks,

greg k-h
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