From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Mon, 27 May 2013 12:14:34 +0000 (+0300)
Subject: ep93xx_dma: remove useless use of lock
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2302cec2240de28ee1c6977dbbcce308bce8af83;p=linux-beck.git

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 f2bf8c0c4675..591cd8c63abb 100644
--- 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);
 }
 
 /**