From 4d523b60ef9d1953d9e12745ca0ed3e2dc98c189 Mon Sep 17 00:00:00 2001
From: Jason Liu <jason.hui@linaro.org>
Date: Wed, 24 Aug 2011 19:26:28 +0800
Subject: [PATCH] mtd: check parts pointer before using it

The code has the check for parts but it called after kmemdup,
kmemdup(parts, sizeof(*parts) * nr_parts,...)
if (!parts)
	return -ENOMEM

In fact, we need check parts before safely using it.
and we also need check the real_parts to make sure kmemdup
allocation sucessfully.

Signed-off-by: Jason Liu <jason.hui@linaro.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
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