[PATCH V2 resend 3/7] dmaengine/dw_dmac: call dwc_descriptor_complete from dwc_control with lock held

[Viresh Kumar]

dwc_descriptor_complete must always be called with channel lock held. This patch
moves unlock code, in dwc_control(), untill after dwc_descriptor_complete is
called.

Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxx>
---
 drivers/dma/dw_dmac.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index dbe8203..bbb658c 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -825,12 +825,12 @@ static int dwc_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
 	list_splice_init(&dwc->queue, &list);
 	list_splice_init(&dwc->active_list, &list);
 
-	spin_unlock_irqrestore(&dwc->lock, dwc->lflags);
-
 	/* Flush all pending and queued descriptors */
 	list_for_each_entry_safe(desc, _desc, &list, desc_node)
 		dwc_descriptor_complete(dwc, desc);
 
+	spin_unlock_irqrestore(&dwc->lock, dwc->lflags);
+
 	return 0;
 }
 
-- 
1.7.2.2

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/