diff options
| author | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-01-15 21:12:27 +0100 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2009-01-16 21:20:00 +0100 |
| commit | d45e0855488032ea62ec5638fb1dcd47367f8ddb (patch) | |
| tree | 801341825d4f3ec51746715e3e29b36e7337caff | |
| parent | Merge branch 'misc' into release (diff) | |
| download | linux-d45e0855488032ea62ec5638fb1dcd47367f8ddb.tar.xz linux-d45e0855488032ea62ec5638fb1dcd47367f8ddb.zip | |
ACPI PCI hotplug: harden against panic regression
ACPI hotplug panic with current git head
http://lkml.org/lkml/2009/1/10/136
Rather than reverting the entire commit that causes the crash:
e8c331e963c58b83db24b7d0e39e8c07f687dbc6
"PCI hotplug: introduce functions for ACPI slot detection"
simply harden against it while the changes to
the hotplug code on this particularl machine are understood.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Len Brown <len.brown@intel.com>
| -rw-r--r-- | drivers/pci/hotplug/acpiphp_glue.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index f09b1010d477..803d9ddd6e75 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -266,6 +266,8 @@ static int detect_ejectable_slots(struct pci_bus *pbus) int found = acpi_pci_detect_ejectable(pbus); if (!found) { acpi_handle bridge_handle = acpi_pci_get_bridge_handle(pbus); + if (!bridge_handle) + return 0; acpi_walk_namespace(ACPI_TYPE_DEVICE, bridge_handle, (u32)1, is_pci_dock_device, (void *)&found, NULL); } |