diff options
Diffstat (limited to 'drivers/misc/vmw_vmci/vmci_guest.c')
| -rw-r--r-- | drivers/misc/vmw_vmci/vmci_guest.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/misc/vmw_vmci/vmci_guest.c b/drivers/misc/vmw_vmci/vmci_guest.c index d30d66258e52..b93afe7f7119 100644 --- a/drivers/misc/vmw_vmci/vmci_guest.c +++ b/drivers/misc/vmw_vmci/vmci_guest.c @@ -562,6 +562,17 @@ static int vmci_guest_probe_device(struct pci_dev *pdev, } } + if (mmio_base != NULL) { + if (capabilities & VMCI_CAPS_DMA_DATAGRAM) { + caps_in_use |= VMCI_CAPS_DMA_DATAGRAM; + } else { + dev_err(&pdev->dev, + "Missing capability: VMCI_CAPS_DMA_DATAGRAM\n"); + error = -ENXIO; + goto err_free_data_buffer; + } + } + dev_info(&pdev->dev, "Using capabilities 0x%x\n", caps_in_use); /* Let the host know which capabilities we intend to use. */ |