From 4a3e818181e1baf970e9232ca8b747e233176b87 Mon Sep 17 00:00:00 2001
From: Denis Joseph Barrow <D.Barow@option.com>
Date: Tue, 25 Nov 2008 00:27:50 -0800
Subject: [PATCH] hso: Fix crashes on close.

Moved serial_open_count in hso_serial_open to
prevent crashes owing to the serial structure being made NULL
when hso_serial_close is called even though hso_serial_open
returned -ENODEV, Alan Cox pointed out this happens,
also put in sanity check in hso_serial_close
to check for a valid serial structure which should prevent
the most reproducable crash in the driver when the hso device
is disconnected while in use.

Signed-off-by: Denis Joseph Barrow <D.Barow@option.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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