Messages in this thread Patch in this message | | | From | Andy Shevchenko <> | Subject | [PATCH 07/12] mpc512x_dma: remove useless use of lock | Date | Mon, 27 May 2013 15:14:37 +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/mpc512x_dma.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-)
diff --git a/drivers/dma/mpc512x_dma.c b/drivers/dma/mpc512x_dma.c index 2d95673..2fe4353 100644 --- a/drivers/dma/mpc512x_dma.c +++ b/drivers/dma/mpc512x_dma.c @@ -556,15 +556,7 @@ static enum dma_status mpc_dma_tx_status(struct dma_chan *chan, dma_cookie_t cookie, struct dma_tx_state *txstate) { - struct mpc_dma_chan *mchan = dma_chan_to_mpc_dma_chan(chan); - 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; + return dma_cookie_status(chan, cookie, txstate); } /* Prepare descriptor for memory to memory copy */ -- 1.8.2.rc0.22.gb3600c3
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