1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/ata/pata_isapnp.c b/drivers/ata/pata_isapnp.c
index 15cdb9148aab..afa8f704271e 100644
--- a/drivers/ata/pata_isapnp.c
+++ b/drivers/ata/pata_isapnp.c
@@ -66,7 +66,7 @@ static int isapnp_init_one(struct pnp_dev *idev, const struct pnp_device_id *dev
         ap = host->ports[0];
 
         ap->ops = &isapnp_port_ops;
-        ap->pio_mask = 1;
+        ap->pio_mask = ATA_PIO0;
         ap->flags |= ATA_FLAG_SLAVE_POSS;
 
         ap->ioaddr.cmd_addr = cmd_addr;