Messages in this thread Patch in this message | | | From | Andy Shevchenko <> | Subject | [PATCH 08/12] pch_dma: remove useless use of lock | Date | Mon, 27 May 2013 15:14:38 +0300 |
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Accordingly to dma_cookie_status() description locking is not required.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> --- drivers/dma/pch_dma.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-)
diff --git a/drivers/dma/pch_dma.c b/drivers/dma/pch_dma.c index ce3dc3e..237f1d5 100644 --- a/drivers/dma/pch_dma.c +++ b/drivers/dma/pch_dma.c @@ -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) -- 1.8.2.rc0.22.gb3600c3
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