Re: [PATCH v2] Documentation DMA-API-HOWTO.txt Add dma mapping errorcheck usage examples
From: Jesper Juhl
Date: Thu Oct 18 2012 - 17:32:49 EST
On Thu, 18 Oct 2012, 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@xxxxxx>
Nit picking :
> +Example 2: (if buffers are allocated a loop, unmap all mapped buffers when
> + mapping error is detected in the middle)
"... if buffers are allocated in a loop..."
Jesper Juhl <jj@xxxxxxxxxxxxx> http://www.chaosbits.net/
Don't top-post http://www.catb.org/jargon/html/T/top-post.html
Plain text mails only, please.
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