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DMAENGINE: at_hdmac: locking fixlet 

atc_chain_complete shall be called with atchan->lock held
and bh disabled.

Signed-off-by: Yong Wang <yong.y.wang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Yong Wang 2010-08-05 10:40:08 +08:00 committed by Dan Williams
parent 61cd220376
commit b0ebeb9c09
1 changed files with 2 additions and 2 deletions
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4
drivers/dma/at_hdmac.c
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@ -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->queue, &list);
list_splice_init(&atchan->active_list, &list); list_splice_init(&atchan->active_list, &list);
spin_unlock_bh(&atchan->lock);
/* Flush all pending and queued descriptors */ /* Flush all pending and queued descriptors */
list_for_each_entry_safe(desc, _desc, &list, desc_node) list_for_each_entry_safe(desc, _desc, &list, desc_node)
atc_chain_complete(atchan, desc); atc_chain_complete(atchan, desc);
spin_unlock_bh(&atchan->lock);
return 0; return 0;
} }