fsldma: remove useless use of lock (9b0b0bdc) · Commits · 戴 / test

Accordingly to dma_cookie_status() description locking is not required. Signed-off-by:

Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Li Yang <leoli@freescale.com> Cc: Zhang Wei <zw@zh-kernel.org> Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by:

drivers/dma/fsldma.c

+1 −9

Original line number	Diff line number	Diff line
		@@ -979,15 +979,7 @@ static enum dma_status fsl_tx_status(struct dma_chan *dchan,
		dma_cookie_t cookie,
		struct dma_tx_state *txstate)
		{
		struct fsldma_chan *chan = to_fsl_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);
		}

		/----------------------------------------------------------------------------/