Re: [PATCH 03/13] dmaengine: up-level reference counting to the module level

[Dan Williams]

On Thu, Dec 4, 2008 at 12:28 PM, Guennadi Liakhovetski
<g.liakhovetski@xxxxxx> wrote:
> Ok, but why not postpone calling .device_alloc_chan_resources() until a
> channel is _found_?

dma_find_channel() is called in fast paths (atomic contexts, I/O
writeout), so we need to allocate ahead of time.
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