ata_piix: fix MWDMA handling on PIIX3

Fix erroneous check for ap->udma_mask in do_pata_set_dmamode()
resulting in controller not being programmed properly for MWDMA.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 9ac4e378992e..0c6155f51173 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -869,10 +869,10 @@ static void do_pata_set_dmamode(struct ata_port *ap, struct ata_device *adev, in
                                 (timings[pio][1] << 8);
                 }
 
-                if (ap->udma_mask) {
+                if (ap->udma_mask)
                         udma_enable &= ~(1 << devid);
-                        pci_write_config_word(dev, master_port, master_data);
-                }
+
+                pci_write_config_word(dev, master_port, master_data);
         }
         /* Don't scribble on 0x48 if the controller does not support UDMA */
         if (ap->udma_mask)