From 4aa9fe0a1f307df4635822c3019bb196aa30b938 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 27 May 2013 15:14:36 +0300 Subject: [PATCH] mmp_pdma: remove useless use of lock Accordingly to dma_cookie_status() description locking is not required. Signed-off-by: Andy Shevchenko Signed-off-by: Vinod Koul --- drivers/dma/mmp_pdma.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c index c26699f9c4df..ad4b0a7167f6 100644 --- a/drivers/dma/mmp_pdma.c +++ b/drivers/dma/mmp_pdma.c @@ -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); } /** -- 2.39.5