[alsa-devel] [PATCH] ALSA: hda/hdmi - fix atpx_present when CLASS is not VGA
You can't use PCI_BASE_CLASS with pci_get_class(). This happens to work by luck on devices with PCI_CLASS_DISPLAY_VGA, but misses PCI_CLASS_DISPLAY_OTHER. Add a check for those as well.
Signed-off-by: Alex Deucher alexander.deucher@amd.com --- sound/pci/hda/hda_intel.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index b856b89378ac..f69c8de64bd6 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -1410,7 +1410,17 @@ static bool atpx_present(void) acpi_handle dhandle, atpx_handle; acpi_status status;
- while ((pdev = pci_get_class(PCI_BASE_CLASS_DISPLAY << 16, pdev)) != NULL) { + while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) { + dhandle = ACPI_HANDLE(&pdev->dev); + if (dhandle) { + status = acpi_get_handle(dhandle, "ATPX", &atpx_handle); + if (!ACPI_FAILURE(status)) { + pci_dev_put(pdev); + return true; + } + } + } + while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_OTHER << 8, pdev)) != NULL) { dhandle = ACPI_HANDLE(&pdev->dev); if (dhandle) { status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
On Sat, 21 Dec 2019 01:17:02 +0100, Alex Deucher wrote:
You can't use PCI_BASE_CLASS with pci_get_class(). This happens to work by luck on devices with PCI_CLASS_DISPLAY_VGA, but misses PCI_CLASS_DISPLAY_OTHER. Add a check for those as well.
Signed-off-by: Alex Deucher alexander.deucher@amd.com
Applied, thanks.
Takashi
participants (2)
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Alex Deucher
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Takashi Iwai