The ACPI/machine-driver code refactoring introduced in 4.13 introduced a regression for cases where we need a DMI-based quirk to select the machine driver (the BIOS reports an invalid HID). The fix is just to make sure the results of the quirk are actually used.

back-ported to 4.14-stable from commit 5c256045b87b ("ASoC: acpi: fix machine driver selection based on quirk") which did not apply cleanly.

Fixes: 54746dabf770 ('ASoC: Improve machine driver selection based on quirk data') Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=96691 Tested-by: Nicole Færber nicole.faerber@dpin.de Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown broonie@kernel.org Cc: stable@vger.kernel.org --- sound/soc/intel/common/sst-match-acpi.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/sound/soc/intel/common/sst-match-acpi.c b/sound/soc/intel/common/sst-match-acpi.c index 56d26f36a3cb..b4a929562218 100644 --- a/sound/soc/intel/common/sst-match-acpi.c +++ b/sound/soc/intel/common/sst-match-acpi.c @@ -83,11 +83,9 @@ struct sst_acpi_mach *sst_acpi_find_machine(struct sst_acpi_mach *machines)

for (mach = machines; mach->id[0]; mach++) { if (sst_acpi_check_hid(mach->id) == true) { - if (mach->machine_quirk == NULL) - return mach; - - if (mach->machine_quirk(mach) != NULL) - return mach; + if (mach->machine_quirk) + mach = mach->machine_quirk(mach); + return mach; } } return NULL;