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pch_dma: remove useless use of lock

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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 15:14:38 +03:00 committed by Vinod Koul
parent 108fae842a
commit da0a908ed9
1 changed files with 1 additions and 8 deletions
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9
drivers/dma/pch_dma.c
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@ -564,14 +564,7 @@ static void pd_free_chan_resources(struct dma_chan *chan)
static enum dma_status pd_tx_status(struct dma_chan *chan, dma_cookie_t cookie,
struct dma_tx_state *txstate)
{
struct pch_dma_chan *pd_chan = to_pd_chan(chan);
enum dma_status ret;
spin_lock_irq(&pd_chan->lock);
ret = dma_cookie_status(chan, cookie, txstate);
spin_unlock_irq(&pd_chan->lock);
return ret;
return dma_cookie_status(chan, cookie, txstate);
}
static void pd_issue_pending(struct dma_chan *chan)