linux-kernel - [PATCH RFT linux-next] sh: dma-mapping: support debug_dma_mapping

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Message-ID: <1351268403.4013.24.camel@lorien2>
Date:	Fri, 26 Oct 2012 10:20:03 -0600
From:	Shuah Khan <shuah.khan@...com>
To:	lethal@...ux-sh.org, kyungmin.park@...sung.com,
	m.szyprowski@...sung.com, arnd@...db.de, andrzej.p@...sung.com
Cc:	linux-sh@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	shuahkhan@...il.com
Subject: [PATCH RFT linux-next] sh: dma-mapping: support
 debug_dma_mapping_error

Add support for debug_dma_mapping_error() call to avoid warning from
debug_dma_unmap() interface when it checks for mapping error checked
status. Without this patch, device driver failed to check map error
warning is generated.

Signed-off-by: Shuah Khan <shuah.khan@...com>
---
 arch/sh/include/asm/dma-mapping.h |    1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index 8bd965e..b437f2c 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -46,6 +46,7 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
 	struct dma_map_ops *ops = get_dma_ops(dev);
 
+	debug_dma_mapping_error(dev, dma_addr);
 	if (ops->mapping_error)
 		return ops->mapping_error(dev, dma_addr);
 
-- 
1.7.9.5



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