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Commit 543aabc7 authored by Nicolas Ferre's avatar Nicolas Ferre Committed by Vinod Koul
Browse files

dmaengine: at_hdmac: set residue as total len in atc_tx_status 



If transfer status is !=DMA_SUCCESS, return total transfer len as residue,
instead of zero.

Idea from dw_dmac patch by Viresh Kumar.

Signed-off-by: default avatarNicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 711b9cea

drivers/dma/at_hdmac.c

+6 −1
Original line number Diff line number Diff line
@@ -1026,7 +1026,12 @@ atc_tx_status(struct dma_chan *chan, 


	spin_unlock_bh(&atchan->lock);



	if (ret != DMA_SUCCESS)

		dma_set_tx_state(txstate, last_complete, last_used,

			atc_first_active(atchan)->len);

	else

		dma_set_tx_state(txstate, last_complete, last_used, 0);



	dev_vdbg(chan2dev(chan), "tx_status: %d (d%d, u%d)\n",

		 cookie, last_complete ? last_complete : 0,

		 last_used ? last_used : 0);