From 44b61a9f23dabf27303d32b4947f017f69ca90f6 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 10 Jun 2014 15:30:34 +0530
Subject: [PATCH] mfd: asic3: Fix potential null pointer dereference

We previously assumed 'mem_sdio' could be null but it is
dereferenced in ioremap(). Add a check to avoid a potential
null pointer dereference error.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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