diff options
| author | David Daney <david.daney@cavium.com> | 2015-10-08 10:24:41 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2015-10-08 10:24:41 -0500 |
| commit | 47ddb949029f9517a773e67b0e5eaf80ef596dad (patch) | |
| tree | c98718a817f972cb15a5d1ff0efcfb6a63a20f30 /drivers/pci/host | |
| parent | 9a28033753ca9e86593e15050c7ae02fbc03f9ae (diff) | |
| download | linux-47ddb949029f9517a773e67b0e5eaf80ef596dad.tar.bz2 | |
PCI: generic: Pass starting bus number to pci_scan_root_bus()
If the bus is being configured with a bus-range that does not start at
zero, pass that starting bus number to pci_scan_root_bus(). Passing the
incorrect value of zero causes attempted config accesses outside of the
supported range, which cascades to an OOPs spew and eventual kernel panic.
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'drivers/pci/host')
| -rw-r--r-- | drivers/pci/host/pci-host-generic.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/pci/host/pci-host-generic.c b/drivers/pci/host/pci-host-generic.c index 2533e8da136d..895c0e39ca3b 100644 --- a/drivers/pci/host/pci-host-generic.c +++ b/drivers/pci/host/pci-host-generic.c @@ -251,7 +251,8 @@ static int gen_pci_probe(struct platform_device *pdev) if (!pci_has_flag(PCI_PROBE_ONLY)) pci_add_flags(PCI_REASSIGN_ALL_RSRC | PCI_REASSIGN_ALL_BUS); - bus = pci_scan_root_bus(dev, 0, + + bus = pci_scan_root_bus(dev, pci->cfg.bus_range->start, &pci->cfg.ops->ops, pci, &pci->resources); if (!bus) { dev_err(dev, "Scanning rootbus failed"); |