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path: root/drivers/ata/pata_radisys.c
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Diffstat (limited to 'drivers/ata/pata_radisys.c')
-rw-r--r--drivers/ata/pata_radisys.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/ata/pata_radisys.c b/drivers/ata/pata_radisys.c
index 4401b33..4fd25e7 100644
--- a/drivers/ata/pata_radisys.c
+++ b/drivers/ata/pata_radisys.c
@@ -139,9 +139,9 @@ static void radisys_set_dmamode (struct ata_port *ap, struct ata_device *adev)
pci_read_config_byte(dev, 0x4A, &udma_mode);
if (adev->xfer_mode == XFER_UDMA_2)
- udma_mode &= ~ (1 << adev->devno);
+ udma_mode &= ~(2 << (adev->devno * 4));
else /* UDMA 4 */
- udma_mode |= (1 << adev->devno);
+ udma_mode |= (2 << (adev->devno * 4));
pci_write_config_byte(dev, 0x4A, udma_mode);
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