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Validate the PCI bus number that we fetch from our parent, since there's no

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guarantee that everything attached to *it* is a PCI bus.
This commit is contained in:
Mike Smith 2000-10-09 00:43:45 +00:00
parent e9f536a16c
commit 0441aa9a52
2 changed files with 10 additions and 4 deletions
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7
sys/dev/pci/pci.c
View file

@ -1060,7 +1060,7 @@ pci_add_children(device_t dev, int busno)
static int
pci_probe(device_t dev)
{
static int once;
static int once, busno;
device_set_desc(dev, "PCI bus");
@ -1073,7 +1073,10 @@ pci_probe(device_t dev)
* number to decide what bus we are probing. We ask the parent
* pcib what our bus number is.
*/
pci_add_children(dev, pcib_get_bus(dev));
busno = pcib_get_bus(dev);
if (busno < 0)
return ENXIO;
pci_add_children(dev, busno);
if (!once) {
make_dev(&pcicdev, 0, UID_ROOT, GID_WHEEL, 0644, "pci");

7
sys/pci/pci.c
View file

@ -1060,7 +1060,7 @@ pci_add_children(device_t dev, int busno)
static int
pci_probe(device_t dev)
{
static int once;
static int once, busno;
device_set_desc(dev, "PCI bus");
@ -1073,7 +1073,10 @@ pci_probe(device_t dev)
* number to decide what bus we are probing. We ask the parent
* pcib what our bus number is.
*/
pci_add_children(dev, pcib_get_bus(dev));
busno = pcib_get_bus(dev);
if (busno < 0)
return ENXIO;
pci_add_children(dev, busno);
if (!once) {
make_dev(&pcicdev, 0, UID_ROOT, GID_WHEEL, 0644, "pci");