Messages in this thread | | | Date | Thu, 25 Jul 2013 17:12:11 +0200 | From | Sebastian Andrzej Siewior <> | Subject | Re: [PATCH 15/16] dmaengine: add transfered member to dma_async_tx_descriptor |
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On 07/25/2013 04:57 PM, Lars-Peter Clausen wrote: > I'm not sure that this will work. Once you've submitted the descriptor it is > owned by the dmaengine driver and you are not allowed to dereference it > anymore since the dmaengine driver might free the memory at any time. You > should only reference the descriptor by the cookie returned by submit().
I see. But it can't be reused before calling the callback if it is going to call the callback, right? So if this is a no-no, I'm left with an additional argument to the complete callback?
> - Lars
Sebastian
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