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Diffstat (limited to 'drivers/misc/cxl/vphb.c')
| -rw-r--r-- | drivers/misc/cxl/vphb.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/misc/cxl/vphb.c b/drivers/misc/cxl/vphb.c index 6dd16a6d153f..c241e15cacb1 100644 --- a/drivers/misc/cxl/vphb.c +++ b/drivers/misc/cxl/vphb.c @@ -48,6 +48,12 @@ static bool cxl_pci_enable_device_hook(struct pci_dev *dev) phb = pci_bus_to_host(dev->bus); afu = (struct cxl_afu *)phb->private_data; + + if (!cxl_adapter_link_ok(afu->adapter)) { + dev_warn(&dev->dev, "%s: Device link is down, refusing to enable AFU\n", __func__); + return false; + } + set_dma_ops(&dev->dev, &dma_direct_ops); set_dma_offset(&dev->dev, PAGE_OFFSET); @@ -284,8 +290,10 @@ void cxl_pci_vphb_remove(struct cxl_afu *afu) return; phb = afu->phb; + afu->phb = NULL; pci_remove_root_bus(phb->bus); + pcibios_free_controller(phb); } struct cxl_afu *cxl_pci_to_afu(struct pci_dev *dev) |