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mmp_pdma: 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>
This commit is contained in:
Andy Shevchenko 2013-05-27 15:14:36 +03:00 committed by Vinod Koul
parent 9b0b0bdc6a
commit 4aa9fe0a1f
1 changed files with 1 additions and 9 deletions
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10
drivers/dma/mmp_pdma.c
View File

@ -632,15 +632,7 @@ static int mmp_pdma_control(struct dma_chan *dchan, enum dma_ctrl_cmd cmd,
static enum dma_status mmp_pdma_tx_status(struct dma_chan *dchan,
dma_cookie_t cookie, struct dma_tx_state *txstate)
{
struct mmp_pdma_chan *chan = to_mmp_pdma_chan(dchan);
enum dma_status ret;
unsigned long flags;
spin_lock_irqsave(&chan->desc_lock, flags);
ret = dma_cookie_status(dchan, cookie, txstate);
spin_unlock_irqrestore(&chan->desc_lock, flags);
return ret;
return dma_cookie_status(dchan, cookie, txstate);
}
/**