Commit a08f2673 authored Mar 16, 2017 by Andy Shevchenko Committed by Vinod Koul Mar 27, 2017

dmaengine: cppi41: fix cppi41_dma_tx_status() logic



It makes sense to set residue when channel is in progress. Otherwise it
should be 0 since transfer is completed. Meanwhile this patch doesn't
prevent to set residue value anyway.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

parent 4f68b09e

drivers/dma/cppi41.c

+2 −4

Original line number	Diff line number	Diff line
		@@ -420,11 +420,9 @@ static enum dma_status cppi41_dma_tx_status(struct dma_chan *chan,
		struct cppi41_channel *c = to_cpp41_chan(chan);
		enum dma_status ret;

		/* lock */
		ret = dma_cookie_status(chan, cookie, txstate);
		if (txstate && ret == DMA_COMPLETE)
		txstate->residue = c->residue;
		/* unlock */

		dma_set_residue(txstate, c->residue);

		return ret;
		}