1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 026439e05afe..c7501058d07d 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -882,7 +882,7 @@ unsigned long ata_pci_default_filter(struct ata_device *adev, unsigned long xfer
         /* Filter out DMA modes if the device has been configured by
            the BIOS as PIO only */
 
-        if (adev->link->ap->ioaddr.bmdma_addr == 0)
+        if (adev->link->ap->ioaddr.bmdma_addr == NULL)
                 xfer_mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
         return xfer_mask;
 }