linux-kernel - [PATCH] mm: cma: fix condition check when setting global cma area

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Date:	Fri, 06 Jul 2012 12:08:36 +0200
From:	Marek Szyprowski <m.szyprowski@...sung.com>
To:	linux-kernel@...r.kernel.org
Cc:	Michal Nazarewicz <mina86@...a86.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Arnd Bergmann <arnd@...db.de>
Subject: [PATCH] mm: cma: fix condition check when setting global cma area

dev_set_cma_area incorrectly assigned cma to global area on first call
due to incorrect check. This patch fixes this issue.

Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
---
 include/asm-generic/dma-contiguous.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/include/asm-generic/dma-contiguous.h b/include/asm-generic/dma-contiguous.h
index c544356..294b1e7 100644
--- a/include/asm-generic/dma-contiguous.h
+++ b/include/asm-generic/dma-contiguous.h
@@ -18,7 +18,7 @@ static inline void dev_set_cma_area(struct device *dev, struct cma *cma)
 {
 	if (dev)
 		dev->cma_area = cma;
-	if (!dev || !dma_contiguous_default_area)
+	if (!dev && !dma_contiguous_default_area)
 		dma_contiguous_default_area = cma;
 }
 
-- 
1.7.1.569.g6f426

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