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-rw-r--r--drivers/dma/ptdma/ptdma-dmaengine.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/dma/ptdma/ptdma-dmaengine.c b/drivers/dma/ptdma/ptdma-dmaengine.c
index e38dca422391..91b93e8d9779 100644
--- a/drivers/dma/ptdma/ptdma-dmaengine.c
+++ b/drivers/dma/ptdma/ptdma-dmaengine.c
@@ -100,12 +100,17 @@ static struct pt_dma_desc *pt_handle_active_desc(struct pt_dma_chan *chan,
spin_lock_irqsave(&chan->vc.lock, flags);
if (desc) {
- if (desc->status != DMA_ERROR)
- desc->status = DMA_COMPLETE;
-
- dma_cookie_complete(tx_desc);
- dma_descriptor_unmap(tx_desc);
- list_del(&desc->vd.node);
+ if (desc->status != DMA_COMPLETE) {
+ if (desc->status != DMA_ERROR)
+ desc->status = DMA_COMPLETE;
+
+ dma_cookie_complete(tx_desc);
+ dma_descriptor_unmap(tx_desc);
+ list_del(&desc->vd.node);
+ } else {
+ /* Don't handle it twice */
+ tx_desc = NULL;
+ }
}
desc = pt_next_dma_desc(chan);