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| author | Andy Shevchenko | 2013-07-15 14:04:40 +0200 |
|---|---|---|
| committer | Vinod Koul | 2013-08-05 06:02:26 +0200 |
| commit | 12381dc0c764ecd1703adc6d23c869006223dab8 (patch) | |
| tree | b65a2fce43f6abb948dee0bdb606b18ecaa9297d /drivers/dma/dw/core.c | |
| parent | dma: dw: allow shared interrupts (diff) | |
| download | kernel-qcow2-linux-12381dc0c764ecd1703adc6d23c869006223dab8.tar.gz kernel-qcow2-linux-12381dc0c764ecd1703adc6d23c869006223dab8.tar.xz kernel-qcow2-linux-12381dc0c764ecd1703adc6d23c869006223dab8.zip | |
dma: dw: return DMA_SUCCESS immediately from device_tx_status()
There is no point to go throught the rest of the function if first call to
dma_cookie_status() returned DMA_SUCCESS.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/dw/core.c')
| -rw-r--r-- | drivers/dma/dw/core.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c index 6932645ca1f8..5f2ee5ff8fa4 100644 --- a/drivers/dma/dw/core.c +++ b/drivers/dma/dw/core.c @@ -1098,12 +1098,12 @@ dwc_tx_status(struct dma_chan *chan, enum dma_status ret; ret = dma_cookie_status(chan, cookie, txstate); - if (ret != DMA_SUCCESS) { - dwc_scan_descriptors(to_dw_dma(chan->device), dwc); + if (ret == DMA_SUCCESS) + return ret; - ret = dma_cookie_status(chan, cookie, txstate); - } + dwc_scan_descriptors(to_dw_dma(chan->device), dwc); + ret = dma_cookie_status(chan, cookie, txstate); if (ret != DMA_SUCCESS) dma_set_residue(txstate, dwc_get_residue(dwc)); |