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path: root/drivers/pci/pcie/aer/aerdrv_acpi.c
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Diffstat (limited to 'drivers/pci/pcie/aer/aerdrv_acpi.c')
-rw-r--r--drivers/pci/pcie/aer/aerdrv_acpi.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/pci/pcie/aer/aerdrv_acpi.c b/drivers/pci/pcie/aer/aerdrv_acpi.c
index 8c199ae84f6..d39a78dbd02 100644
--- a/drivers/pci/pcie/aer/aerdrv_acpi.c
+++ b/drivers/pci/pcie/aer/aerdrv_acpi.c
@@ -31,10 +31,13 @@ int aer_osc_setup(struct pcie_device *pciedev)
{
acpi_status status = AE_NOT_FOUND;
struct pci_dev *pdev = pciedev->port;
- acpi_handle handle = 0;
+ acpi_handle handle = NULL;
+
+ if (acpi_pci_disabled)
+ return -1;
/* Find root host bridge */
- while (pdev->bus && pdev->bus->self)
+ while (pdev->bus->self)
pdev = pdev->bus->self;
handle = acpi_get_pci_rootbridge_handle(
pci_domain_nr(pdev->bus), pdev->bus->number);