fix WiFiClient::availableForWrite() with no connexion (#3985)

fix #3983
esp8266 · Dec 18, 2017 · f8b577b · f8b577b
1 parent 08cdf15
commit f8b577b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/libraries/ESP8266WiFi/src/WiFiClient.cpp b/libraries/ESP8266WiFi/src/WiFiClient.cpp
@@ -156,7 +156,7 @@ bool WiFiClient::getNoDelay() {
 
 size_t WiFiClient::availableForWrite ()
 {
-    return _client->availableForWrite();
+    return _client? _client->availableForWrite(): 0;
 }
 
 size_t WiFiClient::write(uint8_t b)