143             return NULL;  in get_entry_at_index()
151             return NULL;  in get_entry_at_index()
157             return NULL;  in get_entry_at_index()
181     if (metadata_buf == NULL) {  in radio_metadata_allocate()
205     if (metadata == NULL || *metadata == NULL || type != RADIO_METADATA_TYPE_INT) {  in radio_metadata_add_int()
217     if (metadata == NULL || *metadata == NULL || type != RADIO_METADATA_TYPE_TEXT ||  in radio_metadata_add_text()
218             value == NULL || strlen(value) >= RADIO_METADATA_TEXT_LEN_MAX) {  in radio_metadata_add_text()
230     if (metadata == NULL || *metadata == NULL || type != RADIO_METADATA_TYPE_RAW || value == NULL) {  in radio_metadata_add_raw()
240     if (metadata == NULL || *metadata == NULL || type != RADIO_METADATA_TYPE_CLOCK ||  in radio_metadata_add_clock()
241         clock == NULL || clock->timezone_offset_in_minutes < (-12 * 60) ||  in radio_metadata_add_clock()
257     if (dst_metadata == NULL || src_metadata == NULL) {  in radio_metadata_add_metadata()
260     if (*dst_metadata == NULL) {  in radio_metadata_add_metadata()
294     if (metadata_buf == NULL) {  in radio_metadata_check()
316         if (entry == NULL) {  in radio_metadata_check()
341     if (metadata_buf == NULL) {  in radio_metadata_get_size()
352     if (metadata_buf == NULL) {  in radio_metadata_get_count()
369     if (metadata_buf == NULL || key == NULL || type == NULL ||  in radio_metadata_get_at_index()
370             value == NULL || size == NULL) {  in radio_metadata_get_at_index()
393     radio_metadata_entry_t *entry = NULL;  in radio_metadata_get_from_key()
397     if (metadata_buf == NULL || type == NULL || value == NULL || size == NULL) {  in radio_metadata_get_from_key()
404     for (count = 0; count < metadata_buf->count; entry = NULL, count++) {  in radio_metadata_get_from_key()
410     if (entry == NULL) {  in radio_metadata_get_from_key()