From e464ef16c4f080bb85ccf9085f92503b5b5b1e13 Mon Sep 17 00:00:00 2001
From: Gioh Kim <gioh.kim@lge.com>
Date: Thu, 22 May 2014 13:38:23 +0900
Subject: [PATCH] arm: dma-mapping: add checking cma area initialized

If CMA is turned on and CMA size is set to zero, kernel should
behave as if CMA was not enabled at compile time.
Every dma allocation should check existence of cma area
before requesting memory.

Signed-off-by: Gioh Kim <gioh.kim@lge.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
[mszyprow: removed redundant empty line from the patch]
Signed-off-by: <m.szyprowski@samsung.com>
---
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