From kristen.c.accardi@intel.com Thu Aug 9 16:09:43 2007 From: Kristen Carlson Accardi Date: Thu, 09 Aug 2007 16:09:31 -0700 Subject: PCI Hotplug: pciehp: Dont check bridge control on remove To: gregkh@suse.de Cc: Kristen Carlson Accardi Message-ID: <20070809230943.050363851@intel.com> From: Kristen Carlson Accardi When removing a device with a bridge on it, only read the bridge control register if the adapter is actually present. Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/pciehp_pci.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) --- a/drivers/pci/hotplug/pciehp_pci.c +++ b/drivers/pci/hotplug/pciehp_pci.c @@ -243,9 +243,10 @@ int pciehp_configure_device(struct slot int pciehp_unconfigure_device(struct slot *p_slot) { - int rc = 0; + int ret, rc = 0; int j; u8 bctl = 0; + u8 presence = 0; struct pci_bus *parent = p_slot->ctrl->pci_dev->subordinate; dbg("%s: bus/dev = %x/%x\n", __FUNCTION__, p_slot->bus, @@ -263,12 +264,17 @@ int pciehp_unconfigure_device(struct slo continue; } if (temp->hdr_type == PCI_HEADER_TYPE_BRIDGE) { - pci_read_config_byte(temp, PCI_BRIDGE_CONTROL, &bctl); - if (bctl & PCI_BRIDGE_CTL_VGA) { - err("Cannot remove display device %s\n", + ret = p_slot->hpc_ops->get_adapter_status(p_slot, + &presence); + if (!ret && presence) { + pci_read_config_byte(temp, PCI_BRIDGE_CONTROL, + &bctl); + if (bctl & PCI_BRIDGE_CTL_VGA) { + err("Cannot remove display device %s\n", pci_name(temp)); - pci_dev_put(temp); - continue; + pci_dev_put(temp); + continue; + } } } pci_remove_bus_device(temp);