From e94f62e79f7f63a68574ee5e76c19837ec12f3db Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 28 Mar 2014 08:33:00 +0000
Subject: [PATCH] iio: adc: checking for NULL instead of IS_ERR() in probe

mcb_request_mem() returns an ERR_PTR(), it doesn't return NULL.

Fixes: 74aeac4da66f ('iio: adc: Add MEN 16z188 ADC driver')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Cc: Stable@vger.kernel.org
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