linux-kernel - Re: locking issue in vhost_net_set

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Message-ID: <4B9F8F4F.7010103@gmail.com>
Date:	Tue, 16 Mar 2010 15:01:51 +0100
From:	Jiri Slaby <jirislaby@...il.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>
CC:	netdev@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: locking issue in vhost_net_set_backend

On 03/16/2010 02:58 PM, Jiri Slaby wrote:
> I don't see how the lock is unlocked on the error paths and as it is not
> on none of the them maybe I'm missing something?

And there is one more issue in vhost_set_vring, several returns from 
VHOST_SET_VRING_KICK, VHOST_SET_VRING_CALL, VHOST_SET_VRING_ERR with the 
vq->mutex held.

-- 
js
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