diff options
| author | Yong Wang <yong.y.wang@linux.intel.com> | 2010-08-05 10:40:08 +0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2010-08-04 22:09:17 -0700 |
| commit | b0ebeb9c09cb5b84bb2f33927c84c7648845fcec (patch) | |
| tree | 3ebb434421ef49abe2bda85840db2834391fcbba /drivers | |
| parent | 61cd2203769a2bf35d41f8682f6ef865fe2d23ff (diff) | |
| download | linux-b0ebeb9c09cb5b84bb2f33927c84c7648845fcec.tar.bz2 | |
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | 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 bd5250e8c00c..646f6d6809f5 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; } |