[4/6] dma: rcar-dma: use result of updated get_residue in tx_status

Commit Message

[e-mail] Sept. 14, 2015, 12:02 p.m. UTC

From: Muhammad Hamza Farooq <[e-mail]>

Signed-off-by: Muhammad Hamza Farooq <[e-mail]>
---
 drivers/dma/sh/rcar-dmac.c | 4 ++++
 1 file changed, 4 insertions(+)

--
1.9.1

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Patch

diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index 653563d..3af1846 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -1257,6 +1257,10 @@  static enum dma_status rcar_dmac_tx_status(struct dma_chan *chan,
 	residue = rcar_dmac_chan_get_residue(rchan, cookie);
 	spin_unlock_irqrestore(&rchan->lock, flags);

+	/* if there's no residue, the cookie is complete */
+	if(!residue)
+		return DMA_COMPLETE;
+
 	dma_set_residue(txstate, residue);

 	return status;