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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2013-05-27 15:14:36 +0300
committerVinod Koul <vinod.koul@intel.com>2013-08-05 09:32:24 +0530
commit4aa9fe0a1f307df4635822c3019bb196aa30b938 (patch)
tree55f70aeba36ecf6f0aa6de630235f79587f19cd2 /drivers/dma/mmp_pdma.c
parent9b0b0bdc6a3ba70b73ea2fdd6c09ee46b34d3f94 (diff)
downloadop-kernel-dev-4aa9fe0a1f307df4635822c3019bb196aa30b938.zip
op-kernel-dev-4aa9fe0a1f307df4635822c3019bb196aa30b938.tar.gz
mmp_pdma: remove useless use of lock
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>
Diffstat (limited to 'drivers/dma/mmp_pdma.c')
-rw-r--r--drivers/dma/mmp_pdma.c10
1 files changed, 1 insertions, 9 deletions
diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
index c26699f..ad4b0a7 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);
}
/**
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