diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index 7abc7e04f65616ae17a3e08ea947389d7397f613..1baaca7b72edd23fbb9fe75212cb50e7256b23bc 100644
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -950,14 +950,14 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 
 	if ((freq >> 12) != 0xABCDE) {
 		int i;
-		u8 sr;
+		u16 sr;
 		u32 total = 0;
 
 		dev_warn(&dev->dev, "BIOS has not set timing clocks\n");
 
 		/* This is the process the HPT371 BIOS is reported to use */
 		for (i = 0; i < 128; i++) {
-			pci_read_config_byte(dev, 0x78, &sr);
+			pci_read_config_word(dev, 0x78, &sr);
 			total += sr & 0x1FF;
 			udelay(15);
 		}