diff options
Diffstat (limited to 'sound/hda/codecs/side-codecs/cs35l41_hda.c')
| -rw-r--r-- | sound/hda/codecs/side-codecs/cs35l41_hda.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/sound/hda/codecs/side-codecs/cs35l41_hda.c b/sound/hda/codecs/side-codecs/cs35l41_hda.c index 64a5bd895fd1..237059ef22f5 100644 --- a/sound/hda/codecs/side-codecs/cs35l41_hda.c +++ b/sound/hda/codecs/side-codecs/cs35l41_hda.c @@ -1434,10 +1434,19 @@ static int cs35l41_get_acpi_mute_state(struct cs35l41_hda *cs35l41, acpi_handle guid_parse(CS35L41_UUID, &guid); if (cs35l41_dsm_supported(handle, CS35L41_DSM_GET_MUTE)) { - ret = acpi_evaluate_dsm(handle, &guid, 0, CS35L41_DSM_GET_MUTE, NULL); + ret = acpi_evaluate_dsm_typed(handle, &guid, 0, + CS35L41_DSM_GET_MUTE, NULL, + ACPI_TYPE_BUFFER); + if (!ret) return -EINVAL; + if (!ret->buffer.length || !ret->buffer.pointer) { + ACPI_FREE(ret); + return -EINVAL; + } + mute = *ret->buffer.pointer; + ACPI_FREE(ret); dev_dbg(cs35l41->dev, "CS35L41_DSM_GET_MUTE: %d\n", mute); } |