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@xxxxxxx>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
---
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;
--
2.14.1