[PATCH 1/3] PCI: allow PCI core hotplug to remove PCI root bus

[Alex Chiang <achiang@hp.com>]

There is no reason to prevent root bus removal. We never actually
remove the node from the pci_root_buses list, so a rescan will correctly
rediscover the root bus.

Signed-off-by: Alex Chiang <achiang@hp.com>
---

 drivers/pci/pci-sysfs.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index e9a8706..7b2cb27 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -277,14 +277,10 @@ remove_store(struct device *dev, struct device_attribute *dummy,
 {
 	int ret = 0;
 	unsigned long val;
-	struct pci_dev *pdev = to_pci_dev(dev);
 
 	if (strict_strtoul(buf, 0, &val) < 0)
 		return -EINVAL;
 
-	if (pci_is_root_bus(pdev->bus))
-		return -EBUSY;
-
 	/* An attribute cannot be unregistered by one of its own methods,
 	 * so we have to use this roundabout approach.
 	 */