diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-02 08:28:32 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-02 08:28:32 +0200 |
| commit | 714c95ce8bad7a2042006fc9a2079fcd469b6a03 (patch) | |
| tree | cdf9f5a6fcbb389f555584ef64ee911eefeb1777 /drivers/pci/hotplug/acpi_pcihp.c | |
| parent | aaf3f4e925dc2bdc4715142103660285632a245c (diff) | |
| parent | 021c91791a5e7e85c567452f1be3e4c2c6cb6063 (diff) | |
Merge 4.18-rc3 into usb-next
We want the USB and other fixes in here as well to make merges and
testing easier.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/pci/hotplug/acpi_pcihp.c')
| -rw-r--r-- | drivers/pci/hotplug/acpi_pcihp.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c index 3979f89b250a..5bd6c1573295 100644 --- a/drivers/pci/hotplug/acpi_pcihp.c +++ b/drivers/pci/hotplug/acpi_pcihp.c @@ -7,7 +7,6 @@ * All rights reserved. * * Send feedback to <kristen.c.accardi@intel.com> - * */ #include <linux/module.h> @@ -87,8 +86,17 @@ int acpi_get_hp_hw_control_from_firmware(struct pci_dev *pdev) return 0; /* If _OSC exists, we should not evaluate OSHP */ + + /* + * If there's no ACPI host bridge (i.e., ACPI support is compiled + * into the kernel but the hardware platform doesn't support ACPI), + * there's nothing to do here. + */ host = pci_find_host_bridge(pdev->bus); root = acpi_pci_find_root(ACPI_HANDLE(&host->dev)); + if (!root) + return 0; + if (root->osc_support_set) goto no_control; |