From: Seonah Moon <seonah1.moon@samsung.com>
Date: Mon, 12 Mar 2018 08:19:11 +0000 (+0900)
Subject: Fix dereference issues
X-Git-Tag: submit/tizen_4.0/20190104.100529^0
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=refs%2Fheads%2Faccepted%2Ftizen_4.0_unified;p=platform%2Fcore%2Fapi%2Ftethering.git

Fix dereference issues

CID-106471, 110014, 110275

Change-Id: I2fd79201c9bf28827acb9977e59424f59ba942a1
---

diff --git a/src/tethering.c b/src/tethering.c
index 18a516e..5b82fb2 100755
--- a/src/tethering.c
+++ b/src/tethering.c
@@ -2475,10 +2475,16 @@ 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);
@@ -2486,6 +2492,7 @@ 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);