kselftest: alsa: Validate values read from enumerations
Enumerations should return a value between 0 and items-1, check that this
is the case.
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/tools/testing/selftests/alsa/mixer-test.c b/tools/testing/selftests/alsa/mixer-test.c
index b009fc5..17f158d 100644
--- a/tools/testing/selftests/alsa/mixer-test.c
+++ b/tools/testing/selftests/alsa/mixer-test.c
@@ -276,6 +276,23 @@ bool ctl_value_index_valid(struct ctl_data *ctl, snd_ctl_elem_value_t *val,
}
break;
+ case SND_CTL_ELEM_TYPE_ENUMERATED:
+ int_val = snd_ctl_elem_value_get_enumerated(val, index);
+
+ if (int_val < 0) {
+ ksft_print_msg("%s.%d negative value %ld for enumeration\n",
+ ctl->name, index, int_val);
+ return false;
+ }
+
+ if (int_val >= snd_ctl_elem_info_get_items(ctl->info)) {
+ ksft_print_msg("%s.%d value %ld more than item count %ld\n",
+ ctl->name, index, int_val,
+ snd_ctl_elem_info_get_items(ctl->info));
+ return false;
+ }
+ break;
+
default:
/* No tests for other types */
break;
