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| author | Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> | 2009-02-17 14:14:36 +0900 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-03-20 10:48:03 -0700 |
| commit | 151ab36a2ea0b3181d103f7244636e0d16e685de (patch) | |
| tree | e048af45809c7178a574a077409eb4009596595b | |
| parent | d391f00f0e7fb6d883c6724b31a1799e19a584c5 (diff) | |
| download | linux-151ab36a2ea0b3181d103f7244636e0d16e685de.tar.gz linux-151ab36a2ea0b3181d103f7244636e0d16e685de.tar.bz2 linux-151ab36a2ea0b3181d103f7244636e0d16e685de.zip | |
PCI: fix wrong assumption in pci_find_upstream_pcie_bridge
Current pci_find_upstream_pcie_bridge() has a wrong assumption that
pci_bus->self is NULL on the root pci bus. But it might not true on
some platforms. Because of this wrong assumption, current
pci_find_upstream_pcie_bridge() might cause endless loop. We must
check pci_bus->parent instead.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| -rw-r--r-- | drivers/pci/search.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/search.c b/drivers/pci/search.c index 5af8bd538149..710d4ea69568 100644 --- a/drivers/pci/search.c +++ b/drivers/pci/search.c @@ -29,7 +29,7 @@ pci_find_upstream_pcie_bridge(struct pci_dev *pdev) if (pdev->is_pcie) return NULL; while (1) { - if (!pdev->bus->self) + if (!pdev->bus->parent) break; pdev = pdev->bus->self; /* a p2p bridge */ |