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| author | Liu Hua <sdu.liu@huawei.com> | 2014-09-18 08:15:28 +0400 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2014-09-26 13:22:29 +0400 |
| commit | b2dd83b377d390ab503420c9a5867df5741e273d (patch) | |
| tree | 34d908e95f7cf6d93b8f210e021d6e8dab27bb68 /Documentation/DMA-API-HOWTO.txt | |
| parent | 53007a7bfefd98cc3dd121f3b1ceedc6dcf08cc3 (diff) | |
| download | linux-b2dd83b377d390ab503420c9a5867df5741e273d.tar.xz | |
Documentation: correct parameter error for dma_mapping_error
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@huawei.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'Documentation/DMA-API-HOWTO.txt')
| -rw-r--r-- | Documentation/DMA-API-HOWTO.txt | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/DMA-API-HOWTO.txt b/Documentation/DMA-API-HOWTO.txt index dcbbe3602d78..0f7afb2bb442 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 |