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Diffstat (limited to 'drivers/dma/sh/rcar-dmac.c')
| -rw-r--r-- | drivers/dma/sh/rcar-dmac.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c index 433e982..74c9563 100644 --- a/drivers/dma/sh/rcar-dmac.c +++ b/drivers/dma/sh/rcar-dmac.c @@ -1202,6 +1202,10 @@ 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; |