From 7145cf12095265b8a292835d0f6da87f89fac1d1 Mon Sep 17 00:00:00 2001
From: Alexandre Rusev <arusev@dev.rtsoft.ru>
Date: Thu, 27 Oct 2011 18:18:37 +0400
Subject: [PATCH] powerpc/fsl-lbc: Fix for fsl_upm

If Freescale LBC driver fails to initialise itself from device tree, then
internal structure is freed only but not NULL-fied.  As result functions
fsl_lbc_find() after checking the structure is not NULL are trying to
access device registers.

Signed-off-by: Alexandre Rusev <arusev@dev.rtsoft.ru>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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