linux-kernel - Re: [PATCH] virtio: make PCI devices take a virtio

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Message-ID: <49385DB7.4060306@gmail.com>
Date:	Thu, 04 Dec 2008 23:46:15 +0100
From:	Jiri Slaby <jirislaby@...il.com>
To:	Mark McLoughlin <markmc@...hat.com>
CC:	Rusty Russell <rusty@...tcorp.com.au>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	kvm <kvm@...r.kernel.org>, Anthony Liguori <aliguori@...ibm.com>,
	Michael Tokarev <mjt@....msk.ru>
Subject: Re: [PATCH] virtio: make PCI devices take a virtio_pci module ref

On 12/04/2008 01:44 PM, Mark McLoughlin wrote:
> Nothing takes a ref on virtio_pci, so even if you have
> devices in use, rmmod will attempt to unload the module.

It unbinds the device properly as any other driver. So what's the problem here?

> Fix by simply making each device take a ref on the module.
> 
> Signed-off-by: Mark McLoughlin <markmc@...hat.com>
> Reported-by: Michael Tokarev <mjt@....msk.ru>
> ---
>  drivers/virtio/virtio_pci.c |    4 ++++
>  1 files changed, 4 insertions(+), 0 deletions(-)
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