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dmaengine: jz4740: Fix non-cyclic descriptor completion

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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 <[email protected]>
Signed-off-by: Vinod Koul <[email protected]>
This commit is contained in:
Lars-Peter Clausen 2014-09-07 15:54:39 +02:00 • committed by Vinod Koul
commit f498e064e0
1 changed files with 2 additions and 1 deletions
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3
drivers/dma/dma-jz4740.c
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@ -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;
}
}
}