1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c
index ed637ae33ec..5d8b91e70ec 100644
--- a/drivers/ata/pata_it821x.c
+++ b/drivers/ata/pata_it821x.c
@@ -533,6 +533,10 @@ static int it821x_check_atapi_dma(struct ata_queued_cmd *qc)
         struct ata_port *ap = qc->ap;
         struct it821x_dev *itdev = ap->private_data;
 
+        /* Only use dma for transfers to/from the media. */
+        if (qc->nbytes < 2048)
+                return -EOPNOTSUPP;
+
         /* No ATAPI DMA in smart mode */
         if (itdev->smart)
                 return -EOPNOTSUPP;