diff --git a/tools/testing/selftests/alsa/mixer-test.c b/tools/testing/selftests/alsa/mixer-test.c index 1c04e5f638a0b..dd74f8cc7ecef 100644 --- a/tools/testing/selftests/alsa/mixer-test.c +++ b/tools/testing/selftests/alsa/mixer-test.c @@ -625,6 +625,21 @@ static int write_and_verify(struct ctl_data *ctl, return err; } + /* + * We can't verify any specific value for volatile controls + * but we should still check that whatever we read is a valid + * vale for the control. + */ + if (snd_ctl_elem_info_is_volatile(ctl->info)) { + if (!ctl_value_valid(ctl, read_val)) { + ksft_print_msg("Volatile control %s has invalid value\n", + ctl->name); + return -EINVAL; + } + + return 0; + } + /* * Check for an event if the value changed, or confirm that * there was none if it didn't. We rely on the kernel @@ -632,22 +647,20 @@ static int write_and_verify(struct ctl_data *ctl, * write, this is currently true, should that ever change this * will most likely break and need updating. */ - if (!snd_ctl_elem_info_is_volatile(ctl->info)) { - err = wait_for_event(ctl, 0); - if (snd_ctl_elem_value_compare(initial_val, read_val)) { - if (err < 1) { - ksft_print_msg("No event generated for %s\n", - ctl->name); - show_values(ctl, initial_val, read_val); - ctl->event_missing++; - } - } else { - if (err != 0) { - ksft_print_msg("Spurious event generated for %s\n", - ctl->name); - show_values(ctl, initial_val, read_val); - ctl->event_spurious++; - } + err = wait_for_event(ctl, 0); + if (snd_ctl_elem_value_compare(initial_val, read_val)) { + if (err < 1) { + ksft_print_msg("No event generated for %s\n", + ctl->name); + show_values(ctl, initial_val, read_val); + ctl->event_missing++; + } + } else { + if (err != 0) { + ksft_print_msg("Spurious event generated for %s\n", + ctl->name); + show_values(ctl, initial_val, read_val); + ctl->event_spurious++; } }