On Fri, Mar 13, 2015 at 02:33:35AM +0200, Laurent Pinchart wrote:
> videobuf2 has long been subject to AB-BA style deadlocks due to the
> queue lock and mmap_sem being taken in different orders for the mmap
> operation. The problem has been fixed by making this operation callable
> without taking the queue lock, using an mmap_lock internal to videobuf2.
> 
> The omap3isp driver still calls the mmap operation with the queue lock
> held, resulting in a potential deadlock. As the operation can now be
> called without locking the queue, fix it.
> 
> Signed-off-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>

Acked-by: Sakari Ailus <sakari.ai...@iki.fi>

-- 
Sakari Ailus
e-mail: sakari.ai...@iki.fi     XMPP: sai...@retiisi.org.uk
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