linux-kernel - Re: [RFC PATCH 1/3] Add ability to keep track of callers of symbol

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Date:	Tue, 13 Mar 2007 09:13:00 +1100
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Trent Piepho <xyzzy@...akeasy.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Mauro Carvalho Chehab <mchehab@...radead.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 1/3] Add ability to keep track of callers of
	symbol_(get|put)

Hi Trent,

	Patch looks good, just one comment:

On Mon, 2007-03-12 at 07:07 -0700, Trent Piepho wrote:
> +       use = already_uses(a, b);
> +       if (!use) {
> +           printk(KERN_ERR "module %s trying to un-use a module, %s, which "
> +                  "it is not using", a->name, b->name);
> +            return 0;
> +       }

s/return 0/BUG()/.  This is potentially quite a nasty bug.

Thanks!
Rusty.

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