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| author | Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> | 2015-11-19 01:49:52 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-11-20 01:20:36 +0100 |
| commit | 768acd64d68b232e0d2b9623d9846457355f0c27 (patch) | |
| tree | 65b4962b7b9b61599f42544645367dee0c545c48 /drivers/pci/probe.c | |
| parent | PCI: ACPI: Add support for PCI device DMA coherency (diff) | |
| download | linux-768acd64d68b232e0d2b9623d9846457355f0c27.tar.xz linux-768acd64d68b232e0d2b9623d9846457355f0c27.zip | |
PCI: Fix OF logic in pci_dma_configure()
This patch fixes a bug introduced by previous commit,
which incorrectly checkes the of_node of the end-point device.
Instead, it should check the of_node of the host bridge.
Fixes: 50230713b639 ("PCI: OF: Move of_pci_dma_configure() to pci_dma_configure()")
Reported-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/pci/probe.c')
| -rw-r--r-- | drivers/pci/probe.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 064078e11017..dc8fbe5c09d3 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -1646,8 +1646,8 @@ static void pci_dma_configure(struct pci_dev *dev) { struct device *bridge = pci_get_host_bridge_device(dev); - if (IS_ENABLED(CONFIG_OF) && dev->dev.of_node) { - if (bridge->parent) + if (IS_ENABLED(CONFIG_OF) && + bridge->parent && bridge->parent->of_node) { of_dma_configure(&dev->dev, bridge->parent->of_node); } else if (has_acpi_companion(bridge)) { struct acpi_device *adev = to_acpi_device_node(bridge->fwnode); |