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Diffstat (limited to 'arch/x86/kernel/quirks.c')
-rw-r--r--arch/x86/kernel/quirks.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index 6c3b2c6fd772..18093d7498f0 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -499,6 +499,7 @@ static void __init quirk_amd_nb_node(struct pci_dev *dev)
499{ 499{
500 struct pci_dev *nb_ht; 500 struct pci_dev *nb_ht;
501 unsigned int devfn; 501 unsigned int devfn;
502 u32 node;
502 u32 val; 503 u32 val;
503 504
504 devfn = PCI_DEVFN(PCI_SLOT(dev->devfn), 0); 505 devfn = PCI_DEVFN(PCI_SLOT(dev->devfn), 0);
@@ -507,7 +508,13 @@ static void __init quirk_amd_nb_node(struct pci_dev *dev)
507 return; 508 return;
508 509
509 pci_read_config_dword(nb_ht, 0x60, &val); 510 pci_read_config_dword(nb_ht, 0x60, &val);
510 set_dev_node(&dev->dev, val & 7); 511 node = val & 7;
512 /*
513 * Some hardware may return an invalid node ID,
514 * so check it first:
515 */
516 if (node_online(node))
517 set_dev_node(&dev->dev, node);
511 pci_dev_put(nb_ht); 518 pci_dev_put(nb_ht);
512} 519}
513 520