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mpc512x_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 15:14:37 +03:00 committed by Vinod Koul
parent 4aa9fe0a1f
commit 108fae842a
1 changed files with 1 additions and 9 deletions
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10
drivers/dma/mpc512x_dma.c
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@ -556,15 +556,7 @@ static enum dma_status
mpc_dma_tx_status(struct dma_chan *chan, dma_cookie_t cookie, mpc_dma_tx_status(struct dma_chan *chan, dma_cookie_t cookie,
struct dma_tx_state *txstate) struct dma_tx_state *txstate)
{ {
struct mpc_dma_chan *mchan = dma_chan_to_mpc_dma_chan(chan); return dma_cookie_status(chan, cookie, txstate);
enum dma_status ret;
unsigned long flags;
spin_lock_irqsave(&mchan->lock, flags);
ret = dma_cookie_status(chan, cookie, txstate);
spin_unlock_irqrestore(&mchan->lock, flags);
return ret;
} }
/* Prepare descriptor for memory to memory copy */ /* Prepare descriptor for memory to memory copy */