Merge branch 'drm-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...

[sfrench/cifs-2.6.git] / drivers / ata / libata-sff.c

diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 6c289c7b13224119d2ff13756ad556bcbff11fcf..1cce2198baaf1203deb7e1e7e6df305e215501df 100644 (file)
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -573,6 +573,10 @@ int ata_pci_init_bmdma(struct ata_host *host)
        struct pci_dev *pdev = to_pci_dev(gdev);
        int i, rc;
 
+       /* No BAR4 allocation: No DMA */
+       if (pci_resource_start(pdev, 4) == 0)
+               return 0;
+
        /* TODO: If we get no DMA mask we should fall back to PIO */
        rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
        if (rc)