Re: [PATCH v4 3/4] powerpc: PCI: Fix lookup of linux,pci-probe-only property

2015-09-07 Thread Michael Ellerman
On Fri, 2015-09-04 at 17:50 +0100, Marc Zyngier wrote: > When find_and_init_phbs() looks for the probe-only property, it seems > to trust the firmware to be correctly written, and assumes that there > is a parameter to the property. > > It is conceivable that the firmware could not be that perfect

[PATCH v4 3/4] powerpc: PCI: Fix lookup of linux,pci-probe-only property

2015-09-04 Thread Marc Zyngier
When find_and_init_phbs() looks for the probe-only property, it seems to trust the firmware to be correctly written, and assumes that there is a parameter to the property. It is conceivable that the firmware could not be that perfect, and it could expose this property naked (at least one arm64 pla