[PATCH v2] Documentation DMA-API-HOWTO.txt Add dma mapping error check usage examples

Joerg Roedel joerg.roedel at amd.com
Wed Oct 24 15:09:11 UTC 2012


On Thu, Oct 18, 2012 at 02:00:58PM -0600, Shuah Khan wrote:
> Enhance the document to discuss the importance of dma mapping error checks
> after dma_map_single() and dma_map_page() calls. Also added usage examples
> that include unmap examples in error paths when dma mapping error is returned.
> Includes correct and incorrect usages to high light some common mistakes in
> error paths especially when dma mapping fails when more than one dma mapping
> call is made.
> 
> Signed-off-by: Shuah Khan <shuah.khan at hp.com>

Applied, thanks.

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