Fix memory non-freed

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>

src/usb/lwip/rest.c

@@ -214,6 +214,10 @@ int rest_execute_route_handler(const rest_request_t *request, rest_route_handler
         }
         response->body = body;
     }
+    if (response->json != NULL) {
+        cJSON_Delete(response->json);
+        response->json = NULL;
+    }
 
     response->status_code = (response->status_code == 0) ? 200 : response->status_code;
     response->body_len = (response->body_len == 0) ? strlen(response->body) : response->body_len;

src/usb/lwip/rest_server.c

@@ -885,6 +885,7 @@ void rest_check_and_load_credentials(void) {
 out:
         mbedtls_x509write_crt_free(&crt);
         mbedtls_platform_zeroize(cert_pem, sizeof(cert_pem));
+        mbedtls_pk_free(&key);
     }
     tls_credentials.tls_cert_pem = (char *)file_get_data(ef);
     tls_credentials.tls_cert_pem_len = file_get_size(ef);