Does not allocate a child bus if the new bus number does not fit in the parent's bus resource window.
Signed-off-by: Keith Busch <[email protected]> --- drivers/pci/probe.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index edb1984..6e29f7a 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -704,6 +704,12 @@ static struct pci_bus *pci_alloc_child_bus(struct pci_bus *parent, int i; int ret; + if (busnr > parent->busn_res.end) { + dev_printk(KERN_DEBUG, &parent->dev, + "can not alloc bus:%d under %pR\n", busnr, + &parent->busn_res); + return NULL; + } /* * Allocate a new bus, and inherit stuff from the parent.. */ -- 2.6.2.307.g37023ba -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
