Federico Vaga 85ed4f43db Documentation :dmaengine: clarify DMA desc. pointer after submission
It clarifies that the DMA description pointer returned by
`dmaengine_prep_*` function should not be used after submission.

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-02-11 17:23:32 +05:30
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