diff options
| -rw-r--r-- | drivers/ata/libata-sff.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 6c289c7b132..1cce2198baa 100644 --- 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) |