netdev - Re: [PATCH net] ematch: Fix auto-loading of ematch modules.

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Message-ID: <CAHA+R7McGmFtXpiEJkOV2Jjgy29kzpX7tTeprS7S0pY2m9mJBw@mail.gmail.com>
Date:	Mon, 16 Feb 2015 10:36:06 -0800
From:	Cong Wang <cwang@...pensource.com>
To:	Ignacy Gawędzki 
	<ignacy.gawedzki@...en-communications.fr>,
	netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH net] ematch: Fix auto-loading of ematch modules.

On Mon, Feb 16, 2015 at 10:13 AM, Ignacy Gawędzki
<ignacy.gawedzki@...en-communications.fr> wrote:
> In tcf_em_validate(), when calling tcf_em_lookup(), don't put the resulting
> pointer directly into em->ops, if the function is to possibly return -EAGAIN
> after module auto-loading.  Otherwise, module_put() will be called by
> tcf_em_tree_destroy() on em->ops->owner, while it has already been called by
> tcf_em_validate() before return.
>

Or simply reset em->ops to NULL after module_put()?
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