1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/ata/pata_macio.c b/drivers/ata/pata_macio.c
index 17e4e5d19696..25df50f51c04 100644
--- a/drivers/ata/pata_macio.c
+++ b/drivers/ata/pata_macio.c
@@ -720,6 +720,8 @@ static int pata_macio_port_start(struct ata_port *ap)
         if (priv->dma_table_cpu == NULL) {
                 dev_err(priv->dev, "Unable to allocate DMA command list\n");
                 ap->ioaddr.bmdma_addr = NULL;
+                ap->mwdma_mask = 0;
+                ap->udma_mask = 0;
         }
         return 0;
 }