From 3a2d3d213d7c9bb427cc5bdb0de34fe18a22363e Mon Sep 17 00:00:00 2001
From: Oleksandr Kozaruk <alkhozar@gmail.com>
Date: Thu, 29 Aug 2013 10:55:48 +0300
Subject: [PATCH] drivers: misc: ti-st: fix potential race if st_kim_start
 fails

If st_kim_start() fails registered protocols should be removed. This is
done by calling st_reg_complete(), which as comment states is called
with spin lock held. But in st_register() when st_kim_start fails it
is called without holding spin lock, creating possibility of concurrent
access to st_gdata data members.
Hold spin lock while calling st_reg_complete if st_kim_start() fails.

Signed-off-by: Oleksandr Kozaruk <oleksandr.kozaruk@globallogic.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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