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| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2020-06-22 19:12:48 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2020-07-01 00:58:27 +0300 |
| commit | 5396956cc7c6874180c9bfc1ceceb02b739a6a87 (patch) | |
| tree | 82f69eacb9b6f73c3f4eeb8f2072778a0739c3a0 /drivers/virtio | |
| parent | b3a9e3b9622ae10064826dccb4f7a52bd88c7407 (diff) | |
| download | linux-5396956cc7c6874180c9bfc1ceceb02b739a6a87.tar.xz | |
PCI: Make pcie_find_root_port() work for Root Ports
Commit 6ae72bfa656e ("PCI: Unify pcie_find_root_port() and
pci_find_pcie_root_port()") broke acpi_pci_bridge_d3() because calling
pcie_find_root_port() on a Root Port returned NULL when it should return
the Root Port, which in turn broke power management of PCIe hierarchies.
Rework pcie_find_root_port() so it returns its argument when it is already
a Root Port.
[bhelgaas: test device only once, test for PCIe]
Fixes: 6ae72bfa656e ("PCI: Unify pcie_find_root_port() and pci_find_pcie_root_port()")
Link: https://lore.kernel.org/r/20200622161248.51099-1-mika.westerberg@linux.intel.com
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/virtio')
0 files changed, 0 insertions, 0 deletions