2.6.24.4

 drivers

 ata

diff --git a/drivers/ata/pata_serverworks.c b/drivers/ata/pata_serverworks.c
index 8bed888..004cac7 100644
--- a/drivers/ata/pata_serverworks.c
+++ b/drivers/ata/pata_serverworks.c
@@ -226,7 +226,7 @@ static unsigned long serverworks_csb_filter(struct ata_device *adev, unsigned lo
 
    for (i = 0; (p = csb_bad_ata100[i]) != NULL; i++) {
       if (!strcmp(p, model_num))
-         mask &= ~(0x1F << ATA_SHIFT_UDMA);
+         mask &= ~(0xE0 << ATA_SHIFT_UDMA);
    }
    return ata_pci_default_filter(adev, mask);
 }