pata_radisys: fix UDMA handling

[safe/jmp/linux-2.6] / drivers / ata / pata_cmd64x.c

diff --git a/drivers/ata/pata_cmd64x.c b/drivers/ata/pata_cmd64x.c
index e4d3a1e..dadfc35 100644 (file)
--- a/drivers/ata/pata_cmd64x.c
+++ b/drivers/ata/pata_cmd64x.c
@@ -388,8 +388,6 @@ static struct ata_port_operations cmd648_port_ops = {
 
 static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 {
-       u32 class_rev;
-
        static const struct ata_port_info cmd_info[6] = {
                {       /* CMD 643 - no UDMA */
                        .flags = ATA_FLAG_SLAVE_POSS,
@@ -440,18 +438,15 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
        if (rc)
                return rc;
 
-       pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class_rev);
-       class_rev &= 0xFF;
-
        if (id->driver_data == 0)       /* 643 */
                ata_pci_bmdma_clear_simplex(pdev);
 
        if (pdev->device == PCI_DEVICE_ID_CMD_646) {
                /* Does UDMA work ? */
-               if (class_rev > 4)
+               if (pdev->revision > 4)
                        ppi[0] = &cmd_info[2];
                /* Early rev with other problems ? */
-               else if (class_rev == 1)
+               else if (pdev->revision == 1)
                        ppi[0] = &cmd_info[3];
        }