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| author | Viresh Kumar <viresh.kumar@st.com> | 2011-04-15 16:03:35 +0530 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2011-05-13 19:39:55 +0530 |
| commit | abf53902dcc6d44d2e06b09817fa67857aa686fe (patch) | |
| tree | 0477e3e51d0f392fec140b190aad02045fcdc3a5 | |
| parent | 5fedefb87bd0a64281d28edd295f29e3b989d78c (diff) | |
| download | blackbird-op-linux-abf53902dcc6d44d2e06b09817fa67857aa686fe.tar.gz blackbird-op-linux-abf53902dcc6d44d2e06b09817fa67857aa686fe.zip | |
dmaengine/dw_dmac: set residue as total len in dwc_tx_status if status is !DMA_SUCCESS
If transfer status is !=DMA_SUCCESS, return total transfer len as residue,
instead of zero.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| -rw-r--r-- | drivers/dma/dw_dmac.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c index 265d43c8b359..f209ff8835e8 100644 --- a/drivers/dma/dw_dmac.c +++ b/drivers/dma/dw_dmac.c @@ -860,7 +860,11 @@ dwc_tx_status(struct dma_chan *chan, ret = dma_async_is_complete(cookie, last_complete, last_used); } - dma_set_tx_state(txstate, last_complete, last_used, 0); + if (ret != DMA_SUCCESS) + dma_set_tx_state(txstate, last_complete, last_used, + dwc_first_active(dwc)->len); + else + dma_set_tx_state(txstate, last_complete, last_used, 0); return ret; } |
