ep93xx_dma: remove useless use of lock

Accordingly to dma_cookie_status() description locking is not required.

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

diff --git a/drivers/dma/ep93xx_dma.c b/drivers/dma/ep93xx_dma.c
index f2bf8c0c46757d0dbd351af10660cc5643f2cfbd..591cd8c63abbcb081a4cd2ca264ed118f7f3d782 100644 (file)
--- a/drivers/dma/ep93xx_dma.c
+++ b/drivers/dma/ep93xx_dma.c
@@ -1313,15 +1313,7 @@ static enum dma_status ep93xx_dma_tx_status(struct dma_chan *chan,
                                            dma_cookie_t cookie,
                                            struct dma_tx_state *state)
 {
-       struct ep93xx_dma_chan *edmac = to_ep93xx_dma_chan(chan);
-       enum dma_status ret;
-       unsigned long flags;
-
-       spin_lock_irqsave(&edmac->lock, flags);
-       ret = dma_cookie_status(chan, cookie, state);
-       spin_unlock_irqrestore(&edmac->lock, flags);
-
-       return ret;
+       return dma_cookie_status(chan, cookie, state);
 }
 
 /**