dma_mapping_error takes two parameters, but some of examples
in Documentation/DMA-API-HOWTO.txt just takes one. So correct
it.
Signed-off-by: Liu Hua <sdu.liu@xxxxxxxxxx>
---
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 dcbbe36..0f7afb2 100644
--- a/Documentation/DMA-API-HOWTO.txt
+++ b/Documentation/DMA-API-HOWTO.txt
@@ -531,7 +531,7 @@ 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
@@ -588,7 +588,7 @@ 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
@@ -689,7 +689,7 @@ 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(cp->dev, dma_handle)) {
/*
* reduce current DMA mapping usage,
* delay and try again later or
--
1.9.0
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