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| author |   Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2013-05-27 15:14:39 +0300 |
|---|---|---|
| committer |   Vinod Koul <vinod.koul@intel.com> | 2013-08-05 09:32:25 +0530 |
| commit | 0a0aee203c202e946a1e7dee3d40714dbab951a4 (patch) | |
| tree | fc76459835ca5d1a849039a1fd037e08f9b9b68b /drivers/dma/tegra20-apb-dma.c | |
| parent | pch_dma: remove useless use of lock (diff) | |
| download | linux-dev-0a0aee203c202e946a1e7dee3d40714dbab951a4.tar.xz linux-dev-0a0aee203c202e946a1e7dee3d40714dbab951a4.zip | |
tegra20-apb-dma: 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>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/tegra20-apb-dma.c')
| -rw-r--r-- | drivers/dma/tegra20-apb-dma.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c index f137914d7b16..5d4986e5f5fa 100644 --- a/drivers/dma/tegra20-apb-dma.c +++ b/drivers/dma/tegra20-apb-dma.c @@ -767,13 +767,11 @@ static enum dma_status tegra_dma_tx_status(struct dma_chan *dc, unsigned long flags; unsigned int residual; - spin_lock_irqsave(&tdc->lock, flags); - ret = dma_cookie_status(dc, cookie, txstate); - if (ret == DMA_SUCCESS) { - spin_unlock_irqrestore(&tdc->lock, flags); + if (ret == DMA_SUCCESS) return ret; - } + + spin_lock_irqsave(&tdc->lock, flags); /* Check on wait_ack desc status */ list_for_each_entry(dma_desc, &tdc->free_dma_desc, node) { |