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Date: Tue, 5 Apr 2011 13:17:01 -0500
From: Jonathan Nieder <jrnieder@gmail.com>
To: linux-media@vger.kernel.org
Cc: Huber Andreas <hobrom@corax.at>,
	Mauro Carvalho Chehab <mchehab@redhat.com>,
	Hans Verkuil <hverkuil@xs4all.nl>,
	linux-kernel@vger.kernel.org, Ben Hutchings <ben@decadent.org.uk>,
	Steven Toth <stoth@kernellabs.com>
Subject: Re: [RFC/PATCH v2 0/7] locking fixes for cx88
Message-ID: <20110405181700.GA28181@elie>
References: <20110327150610.4029.95961.reportbug@xen.corax.at>
 <20110327152810.GA32106@elie>
 <20110402093856.GA17015@elie>
 <20110405032014.GA4498@elie>
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Jonathan Nieder wrote:

> Jonathan Nieder (7):
>   [media] cx88: protect per-device driver list with device lock
>   [media] cx88: fix locking of sub-driver operations
>   [media] cx88: hold device lock during sub-driver initialization
>   [media] cx88: use a mutex to protect cx8802_devlist
>   [media] cx88: handle attempts to use unregistered cx88-blackbird
>     driver
>   [media] cx88: don't use atomic_t for core->mpeg_users
>   [media] cx88: don't use atomic_t for core->users

Good news: Andreas Huber <hobrom@gmx.at> tested on a PC with 2
Hauppauge HVR1300 TV cards.

He writes:

> Hi Jonathan, I'm glad to say it works! No more deadlocks,
> no more reference count issues.
>
> I did some stress testing on the driver load and unload mechanism
> with and without the video devices being in use. And it was
> handled all very well.
>
> Great job, thanks!