linux-kernel - [PATCH] Fix dma_mapping_error() parameters in the usage examples

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Message-Id: <1382033054-6723-1-git-send-email-shuah.kh@samsung.com>
Date:	Thu, 17 Oct 2013 12:04:14 -0600
From:	Shuah Khan <shuah.kh@...sung.com>
To:	rob@...dley.net
Cc:	Shuah Khan <shuah.kh@...sung.com>, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, shuahkhan@...il.com
Subject: [PATCH] Fix dma_mapping_error() parameters in the usage examples

Fix the dma_mapping_error() parameter list in the usage examples to add
the missing argument to struct device *.

Signed-off-by: Shuah Khan <shuah.kh@...sung.com>
---
 Documentation/DMA-API-HOWTO.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Documentation/DMA-API-HOWTO.txt b/Documentation/DMA-API-HOWTO.txt
index 14129f1..bb9feac 100644
--- a/Documentation/DMA-API-HOWTO.txt
+++ b/Documentation/DMA-API-HOWTO.txt
@@ -468,7 +468,7 @@ To map a single region, you do:
 	size_t size = buffer->len;
 
 	dma_handle = dma_map_single(dev, addr, size, direction);
-	if (dma_mapping_error(dma_handle)) {
+	if (dma_mapping_error(dev, dma_handle)) {
 		/*
 		 * reduce current DMA mapping usage,
 		 * delay and try again later or
@@ -525,7 +525,7 @@ Specifically:
 	size_t size = buffer->len;
 
 	dma_handle = dma_map_page(dev, page, offset, size, direction);
-	if (dma_mapping_error(dma_handle)) {
+	if (dma_mapping_error(dev, dma_handle)) {
 		/*
 		 * reduce current DMA mapping usage,
 		 * delay and try again later or
@@ -628,7 +628,7 @@ to use the dma_sync_*() interfaces.
 		dma_addr_t mapping;
 
 		mapping = dma_map_single(cp->dev, buffer, len, DMA_FROM_DEVICE);
-		if (dma_mapping_error(dma_handle)) {
+		if (dma_mapping_error(dev, dma_handle)) {
 			/*
 			 * reduce current DMA mapping usage,
 			 * delay and try again later or
-- 
1.8.1.2

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