Public bug reported:
SRU Justification: This patch has been accepted into the upstream 2.6.27.4
stable kernel.
It should be pulled into the Ubuntu kernel as well.
TEST CASE: TBD
commit daa0b0ad2666acdb331e6611ca790fd0dfe6a1b0
Author: Kenji Kaneshige <[EMAIL PROTECTED]>
Date: Fri Oct 24 02:50:03 2008 +0000
PCI hotplug: cpqphp: fix kernel NULL pointer dereference
commit d2174c3c07adad88dd9ba37a731e0b00b746822a upstream
The following patch fixes the regression in 2.6.27 that causes kernel
NULL pointer dereference at cpqphp driver probe time. This patch should
be backported to the .27 stable series.
Seems to have been introduced by
f46753c5e354b857b20ab8e0fe7b2579831dc369.
The root cause of this problem seems that cpqphp driver calls
pci_hp_register() wrongly. In current implementation, cpqphp driver
passes 'ctrl->pci_dev->subordinate' as a second parameter for
pci_hp_register(). But because hotplug slots and it's hotplug controller
(exists as a pci funcion) are on the same bus, it should be
'ctrl->pci_dev->bus' instead.
Tested-by: Ingo Molnar <[EMAIL PROTECTED]>
Signed-off-by: Kenji Kaneshige <[EMAIL PROTECTED]>
Signed-off-by: Jesse Barnes <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
--
PCI hotplug: cpqphp: fix kernel NULL pointer dereference
https://bugs.launchpad.net/bugs/293996
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