1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c
index 7a6ff3dfc775..6f7d34ad19ef 100644
--- a/drivers/ata/pata_hpt366.c
+++ b/drivers/ata/pata_hpt366.c
@@ -396,7 +396,7 @@ static int hpt36x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
                 .flags = ATA_FLAG_SLAVE_POSS,
                 .pio_mask = 0x1f,
                 .mwdma_mask = 0x07,
-                .udma_mask = 0x1f,
+                .udma_mask = ATA_UDMA4,
                 .port_ops = &hpt366_port_ops
         };
         struct ata_port_info info = info_hpt366;