Merge pull request #9636 from VeijoPesonen/fix-compiler_warnings

Fix compiler warnings

TESTS/netsocket/tls/tlssocket_echotest.cpp

@@ -63,8 +63,8 @@ void TLSSOCKET_ECHOTEST()
     if (tlssocket_connect_to_echo_srv(*sock) != NSAPI_ERROR_OK) {
         printf("Error from tlssocket_connect_to_echo_srv\n");
         TEST_FAIL();
-        return;
         delete sock;
+        return;
     }
 
     int recvd;

TESTS/network/interface/networkinterface_status.cpp

@@ -137,8 +137,6 @@ void NETWORKINTERFACE_STATUS_NONBLOCK()
 
 void NETWORKINTERFACE_STATUS_GET()
 {
-    nsapi_connection_status_t status;
-
     net = NetworkInterface::get_default_instance();
     net->set_blocking(true);
 

platform/mbed_board.c

@@ -15,6 +15,7 @@
  * limitations under the License.
  */
 #include <stdio.h>
+#include <string.h>
 #include "hal/gpio_api.h"
 #include "platform/mbed_wait_api.h"
 #include "platform/mbed_toolchain.h"