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From: Yong Wang on 4 Aug 2010 23:00
atc_chain_complete shall be called with atchan->lock held
and bh disabled.

Signed-off-by: Yong Wang <yong.y.wang(a)intel.com>
---
drivers/dma/at_hdmac.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index bd5250e..646f6d6 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -790,12 +790,12 @@ static int atc_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
list_splice_init(&atchan->queue, &list);
list_splice_init(&atchan->active_list, &list);

- spin_unlock_bh(&atchan->lock);
-
/* Flush all pending and queued descriptors */
list_for_each_entry_safe(desc, _desc, &list, desc_node)
atc_chain_complete(atchan, desc);

+ spin_unlock_bh(&atchan->lock);
+
return 0;
}

--
1.5.5.1

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