diff options
| -rw-r--r-- | drivers/dma/dw_dmac.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c index 942b50f57f21..2b0d5e99ae71 100644 --- a/drivers/dma/dw_dmac.c +++ b/drivers/dma/dw_dmac.c @@ -836,7 +836,9 @@ dwc_tx_status(struct dma_chan *chan, ret = dma_async_is_complete(cookie, last_complete, last_used); if (ret != DMA_SUCCESS) { + spin_lock_bh(&dwc->lock); dwc_scan_descriptors(to_dw_dma(chan->device), dwc); + spin_unlock_bh(&dwc->lock); last_complete = dwc->completed; last_used = chan->cookie; |