diff options
| author | Peter Griffin <peter.griffin@linaro.org> | 2016-06-07 20:38:39 +0300 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2016-06-21 19:05:00 +0300 |
| commit | b9ab9d10d9898cd022fece44a474e5ddb785d639 (patch) | |
| tree | f8d19f77fe44b63fb13bb046250e30f0823a90c5 /drivers/dma/sun6i-dma.c | |
| parent | a90e56e5b1779836132645e3352c7d5b60cddca8 (diff) | |
| download | linux-b9ab9d10d9898cd022fece44a474e5ddb785d639.tar.xz | |
dmaengine: sun6i-dma: Only calculate residue if state exists.
There is no point in calculating the residue if state does not
exist to store the value.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/sun6i-dma.c')
| -rw-r--r-- | drivers/dma/sun6i-dma.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/sun6i-dma.c b/drivers/dma/sun6i-dma.c index 5065ca43face..3835fcde3545 100644 --- a/drivers/dma/sun6i-dma.c +++ b/drivers/dma/sun6i-dma.c @@ -865,7 +865,7 @@ static enum dma_status sun6i_dma_tx_status(struct dma_chan *chan, size_t bytes = 0; ret = dma_cookie_status(chan, cookie, state); - if (ret == DMA_COMPLETE) + if (ret == DMA_COMPLETE || !state) return ret; spin_lock_irqsave(&vchan->vc.lock, flags); |