diff options
Diffstat (limited to 'drivers/pci/pci-acpi.c')
| -rw-r--r-- | drivers/pci/pci-acpi.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index 5e866b94bcab..67c63d1f1582 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -271,6 +271,7 @@ static pci_power_t acpi_pci_choose_state(struct pci_dev *pdev, static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state) { acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev); + acpi_handle tmp; static int state_conv[] = { [0] = 0, [1] = 1, @@ -282,6 +283,9 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state) if (!handle) return -ENODEV; + /* If the ACPI device has _EJ0, ignore the device */ + if (ACPI_SUCCESS(acpi_get_handle(handle, "_EJ0", &tmp))) + return 0; return acpi_bus_set_power(handle, acpi_state); } |