diff options
Diffstat (limited to 'drivers/dma/pl330.c')
| -rw-r--r-- | drivers/dma/pl330.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 030fe05ed43b..458a712a9da1 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -2263,6 +2263,11 @@ static int pl330_get_current_xferred_count(struct dma_pl330_chan *pch, } pm_runtime_mark_last_busy(pch->dmac->ddma.dev); pm_runtime_put_autosuspend(pl330->ddma.dev); + + /* If DMAMOV hasn't finished yet, SAR/DAR can be zero */ + if (!val) + return 0; + return val - addr; } |