On Tue, 2016-08-30 at 11:58 +1000, Andrew Donnellan wrote: > Hi stable team, > > The following patch, which ended up upstream as > 6f38a8b9a45833495dc878c335c5431cd98a16ed: > > On 18/08/16 17:35, Andrew Donnellan wrote: > > > > When cxl removes a vPHB, it's possible that the pci_controller may be freed > > before all references to the devices on the vPHB have been released. This > > in turn causes an invalid memory access when the devices are eventually > > released, as pcibios_release_device() attempts to call the phb's > > release_device hook. > > > > In cxl_pci_vphb_remove(), remove the existing call to > > pcibios_free_controller(). Instead, use > > pcibios_free_controller_deferred() to free the pci_controller after all > > devices have been released. Export pci_set_host_bridge_release() so we can > > do this. > > > > Cc: stable@xxxxxxxxxxxxxxx > > > > Signed-off-by: Andrew Donnellan <andrew.donnellan@xxxxxxxxxxx> > > > > --- > > > > > > This patch requires http://patchwork.ozlabs.org/patch/658324/. It should go > > through the powerpc tree. > > This depends on 2dd9c11b9d4dfbd6c070eab7b81197f65e82f1a0 which didn't > end up being tagged as cc: stable. It also ended up being applied in the > wrong order in the powerpc/fixes tree... My fault. Best at this point is to also apply 2dd9c11b9d4dfbd6c070eab7b81197f65e82f1a0 to stable. Cheers, Ben. -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
