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authorKristen Carlson Accardi <kristen.c.accardi@intel.com>2007-08-09 16:09:31 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2007-10-12 15:03:14 -0700
commit1cf53d5ddb93b77ce1e277da85fe695e4c2a667d (patch)
treec7db79ee80550c66f7bdc3cf4c9111bbff577a93 /drivers/pci/hotplug
parent89913bf77a60fdb6ff204a670d3e191848a7b2c8 (diff)
downloadtalos-op-linux-1cf53d5ddb93b77ce1e277da85fe695e4c2a667d.tar.gz
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PCI Hotplug: pciehp: Dont check bridge control on remove
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 <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/pci/hotplug')
-rw-r--r--drivers/pci/hotplug/pciehp_pci.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/pci/hotplug/pciehp_pci.c b/drivers/pci/hotplug/pciehp_pci.c
index 854aaea09e4d..8f2b25c49f84 100644
--- a/drivers/pci/hotplug/pciehp_pci.c
+++ b/drivers/pci/hotplug/pciehp_pci.c
@@ -243,9 +243,10 @@ int pciehp_configure_device(struct slot *p_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 slot *p_slot)
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);
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