Messages in this thread Patch in this message | | | From | Viresh Kumar <> | Subject | [PATCH 3/8 resend] dw_dmac: call dwc_scan_descriptor from dwc_issue_pending only if active list is empty | Date | Mon, 28 Feb 2011 16:11:18 +0530 |
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dwc_scan_descriptor was called even when there were descriptors in active list. Checking if active list is empty or not.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com> --- drivers/dma/dw_dmac.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c index 6dd03b0..3bf4772 100644 --- a/drivers/dma/dw_dmac.c +++ b/drivers/dma/dw_dmac.c @@ -848,7 +848,7 @@ static void dwc_issue_pending(struct dma_chan *chan) struct dw_dma_chan *dwc = to_dw_dma_chan(chan); spin_lock_bh(&dwc->lock); - if (!list_empty(&dwc->queue)) + if (!list_empty(&dwc->queue) && list_empty(&dwc->active_list)) dwc_scan_descriptors(to_dw_dma(chan->device), dwc); spin_unlock_bh(&dwc->lock); } -- 1.7.2.2
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