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kselftest: alsa: Validate values read from enumerations

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Enumerations should return a value between 0 and items-1, check that this
is the case.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20211217130213.3893415-3-broonie@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Mark Brown 2021-12-17 13:02:13 +00:00 committed by Takashi Iwai
parent 3f48b137d8
commit 10f2f19466
1 changed files with 17 additions and 0 deletions
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17
tools/testing/selftests/alsa/mixer-test.c
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@ -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;