diff options
Diffstat (limited to 'audio_route/audio_route.c')
-rw-r--r-- | audio_route/audio_route.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/audio_route/audio_route.c b/audio_route/audio_route.c index 90b114d5..bd5c1124 100644 --- a/audio_route/audio_route.c +++ b/audio_route/audio_route.c @@ -420,13 +420,24 @@ static int path_reset(struct audio_route *ar, struct mixer_path *path) static int mixer_enum_string_to_value(struct mixer_ctl *ctl, const char *string) { unsigned int i; + unsigned int num_values = mixer_ctl_get_num_enums(ctl); + + if (string == NULL) { + ALOGE("NULL enum value string passed to mixer_enum_string_to_value() for ctl %s", + mixer_ctl_get_name(ctl)); + return 0; + } /* Search the enum strings for a particular one */ - for (i = 0; i < mixer_ctl_get_num_enums(ctl); i++) { + for (i = 0; i < num_values; i++) { if (strcmp(mixer_ctl_get_enum_string(ctl, i), string) == 0) break; } - + if (i == num_values) { + ALOGE("unknown enum value string %s for ctl %s", + string, mixer_ctl_get_name(ctl)); + return 0; + } return i; } |