add exception handling for iperf example's scan when no ap was found
@@ -63,6 +63,11 @@ static void scan_done_handler(void* arg, esp_event_base_t event_base,
wifi_ap_record_t *ap_list_buffer;
esp_wifi_scan_get_ap_num(&sta_number);
+ if (!sta_number) {
+ ESP_LOGE(TAG, "No AP found");
+ return;
+ }
+
ap_list_buffer = malloc(sta_number * sizeof(wifi_ap_record_t));
if (ap_list_buffer == NULL) {
ESP_LOGE(TAG, "Failed to malloc buffer to print scan results");
