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authorAndrew Donnellan <andrew.donnellan@au1.ibm.com>2016-08-18 10:35:14 +0300
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2016-08-22 04:09:33 +0300
commit6f38a8b9a45833495dc878c335c5431cd98a16ed (patch)
treed454aa443853494533788f1b6aad74e1714eb67a /arch/powerpc/include/asm/pci-bridge.h
parentf5ed841ce75ca33f413c394110d6dc002c097b01 (diff)
downloadlinux-6f38a8b9a45833495dc878c335c5431cd98a16ed.tar.xz
cxl: use pcibios_free_controller_deferred() when removing vPHBs
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@vger.kernel.org Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Acked-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/pci-bridge.h')
0 files changed, 0 insertions, 0 deletions