ipu_idmac: re-use dma_cookie_status()

It's better to use generic dma_cookie_status() that allows user to get standard
possible return codes independently of the DMAC driver in charge.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/ipu/ipu_idmac.c b/drivers/dma/ipu/ipu_idmac.c
index d39c2cd..608d4a2 100644 (file)
--- a/drivers/dma/ipu/ipu_idmac.c
+++ b/drivers/dma/ipu/ipu_idmac.c
@@ -1593,10 +1593,7 @@ static void idmac_free_chan_resources(struct dma_chan *chan)
 static enum dma_status idmac_tx_status(struct dma_chan *chan,
                       dma_cookie_t cookie, struct dma_tx_state *txstate)
 {
-       dma_set_tx_state(txstate, chan->completed_cookie, chan->cookie, 0);
-       if (cookie != chan->cookie)
-               return DMA_ERROR;
-       return DMA_SUCCESS;
+       return dma_cookie_status(chan, cookie, txstate);
 }
 
 static int __init ipu_idmac_init(struct ipu *ipu)