We need to make sure to deqeueue the descriptor from the active list before
we call vchan_cookie_complete(). Also we need obviously only set chan->desc
to NULL after we stopped using it.
Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
---
Note this need not go into stable as there are no users of non-cyclic
DMA transfers on jz4740 in stable.
---
drivers/dma/dma-jz4740.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/dma/dma-jz4740.c b/drivers/dma/dma-jz4740.c
index 6a9d89c..ae2ab14 100644
--- a/drivers/dma/dma-jz4740.c
+++ b/drivers/dma/dma-jz4740.c
@@ -362,8 +362,9 @@ static void jz4740_dma_chan_irq(struct jz4740_dmaengine_chan *chan)
vchan_cyclic_callback(&chan->desc->vdesc);
} else {
if (chan->next_sg == chan->desc->num_sgs) {
- chan->desc = NULL;
+ list_del(&chan->desc->vdesc.node);
vchan_cookie_complete(&chan->desc->vdesc);
+ chan->desc = NULL;
}
}
}
--
1.7.10.4
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