1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/ata/pata_serverworks.c b/drivers/ata/pata_serverworks.c
index 9c523fbf529e..a589c0fa0dbb 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);
 }