Fix dereference issues

CID-106471, 110014, 110275

Change-Id: I2fd79201c9bf28827acb9977e59424f59ba942a1

diff --git a/src/tethering.c b/src/tethering.c
index 4ff0e1b..633e745 100755 (executable)
--- a/src/tethering.c
+++ b/src/tethering.c
@@ -2373,10 +2373,16 @@ API int tethering_foreach_connected_clients(tethering_h tethering, tethering_typ
                g_free(hostname);
                g_free(ip);
                g_free(mac);
+
+               hostname = NULL;
+               ip = NULL;
+               mac = NULL;
+
                g_variant_iter_free(inner_iter);
                if (callback((tethering_client_h)&client, user_data) == false) {
                        DBG("iteration is stopped\n");
                        g_free(client.hostname);
+                       client.hostname = NULL;
                        g_variant_iter_free(outer_iter);
                        g_variant_unref(station);
                        g_variant_unref(result);
@@ -2384,6 +2390,7 @@ API int tethering_foreach_connected_clients(tethering_h tethering, tethering_typ
                        return TETHERING_ERROR_OPERATION_FAILED;
                }
                g_free(client.hostname);
+               client.hostname = NULL;
        }
        //LCOV_EXCL_STOP
        g_variant_iter_free(outer_iter);