diff options
Diffstat (limited to 'drivers/dma/fsldma.c')
| -rw-r--r-- | drivers/dma/fsldma.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index 6541ebf8bf6..bbb4be5a3ff 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -819,8 +819,11 @@ static void fsl_dma_update_completed_cookie(struct fsldma_chan *chan) desc = to_fsl_desc(chan->ld_running.prev); if (dma_is_idle(chan)) cookie = desc->async_tx.cookie; - else + else { cookie = desc->async_tx.cookie - 1; + if (unlikely(cookie < DMA_MIN_COOKIE)) + cookie = DMA_MAX_COOKIE; + } chan->completed_cookie = cookie; |