linux-kernel - Re: [PATCH] irq: track the owner of irq descriptor

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Message-ID: <20110711102608.GW2680@legolas.emea.dhcp.ti.com>
Date:	Mon, 11 Jul 2011 13:26:09 +0300
From:	Felipe Balbi <balbi@...com>
To:	Sebastian Andrzej Siewior <sebastian@...akpoint.cc>
Cc:	Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] irq: track the owner of irq descriptor

Hi,

On Mon, Jul 11, 2011 at 12:17:31PM +0200, Sebastian Andrzej Siewior wrote:
> Since those functions can be called from within modules we should ensure
> that nobody is going to free this module while someone is using an irq via
> requst_.*irq() and still using them.
> A reference is hold in request irq and released on free irq.
> 
> Signed-off-by: Sebastian Andrzej Siewior <sebastian@...akpoint.cc>

This is very good news, I was waiting for that to start changing how
MUSB allocates and frees endpoints. I wanted to have per-endpoint IRQ
handlers and this will help achieve that ;-)

-- 
balbi

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