From e0f8d323f34dee3f47388dc3d87e7c428b077a0d Mon Sep 17 00:00:00 2001
From: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Date: Mon, 10 Dec 2012 11:50:08 +0100
Subject: [PATCH] ipack/devices/ipoctal: added shutdown callback

Added shutdown callback to disable RX and TX when there is no other client
accesing the device.

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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