diff --git a/[refs] b/[refs]
index 86c19c9d6f05..2943f81297a2 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a809c68752e63312c20fb027cf33da4a5ac384a5
+refs/heads/master: dd4a43c979d5da7f2cd20e2751dbbd841116cdfe
diff --git a/trunk/drivers/ata/pata_radisys.c b/trunk/drivers/ata/pata_radisys.c
index 4401b332eaab..4fd25e737d9a 100644
--- a/trunk/drivers/ata/pata_radisys.c
+++ b/trunk/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);