Check hashtable_del return values

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/lttng-sessiond/ust-app.c b/lttng-sessiond/ust-app.c
index b6dd76ae9c0fec891f8ce2f3c3f5af6b6bb5b8d9..8e7a0ce1dd5e45469659991a7f1a80442fc9bc0c 100644 (file)
--- a/lttng-sessiond/ust-app.c
+++ b/lttng-sessiond/ust-app.c
@@ -83,13 +83,15 @@ static void delete_ust_app_channel(int sock, struct ust_app_channel *ua_chan)
 
        /* TODO : remove channel context */
        //cds_lfht_for_each_entry(ltc->ctx, &iter, ltctx, node) {
-       //      hashtable_del(ltc->ctx, &iter);
+       //      ret = hashtable_del(ltc->ctx, &iter);
+       //      assert(!ret);
        //      delete_ust_app_ctx(sock, ltctx);
        //}
        //ret = hashtable_destroy(ltc->ctx);
 
        cds_lfht_for_each_entry(ua_chan->events, &iter, ua_event, node) {
-               hashtable_del(ua_chan->events, &iter);
+               ret = hashtable_del(ua_chan->events, &iter);
+               assert(!ret);
                delete_ust_app_event(sock, ua_event);
        }
 
@@ -128,7 +130,8 @@ static void delete_ust_app_session(int sock,
        }
 
        cds_lfht_for_each_entry(ua_sess->channels, &iter, ua_chan, node) {
-               hashtable_del(ua_sess->channels, &iter);
+               ret = hashtable_del(ua_sess->channels, &iter);
+               assert(!ret);
                delete_ust_app_channel(sock, ua_chan);
        }
 
@@ -181,7 +184,8 @@ static void delete_ust_app(struct ust_app *app)
        app->key.sock = -1;
 
        cds_lfht_for_each_entry(app->sessions, &iter, ua_sess, node) {
-               hashtable_del(app->sessions, &iter);
+               ret = hashtable_del(app->sessions, &iter);
+               assert(!ret);
                delete_ust_app_session(app->key.sock, ua_sess);
        }
 
@@ -1105,6 +1109,7 @@ void ust_app_unregister(int sock)
        struct ust_app *lta;
        struct cds_lfht_node *node;
        struct cds_lfht_iter iter;
+       int ret;
 
        rcu_read_lock();
        lta = find_app_by_sock(sock);
@@ -1123,7 +1128,8 @@ void ust_app_unregister(int sock)
                goto error;
        }
 
-       hashtable_del(ust_app_ht, &iter);
+       ret = hashtable_del(ust_app_ht, &iter);
+       assert(!ret);
        call_rcu(&node->head, delete_ust_app_rcu);
 error:
        rcu_read_unlock();
@@ -1221,9 +1227,8 @@ void ust_app_clean_list(void)
 
        cds_lfht_for_each_entry(ust_app_ht, &iter, app, node) {
                ret = hashtable_del(ust_app_ht, &iter);
-               if (!ret) {
-                       call_rcu(&node->head, delete_ust_app_rcu);
-               }
+               assert(!ret);
+               call_rcu(&node->head, delete_ust_app_rcu);
        }
 
        hashtable_destroy(ust_app_ht);
@@ -1769,6 +1774,7 @@ int ust_app_destroy_trace(struct ltt_ust_session *usess, struct ust_app *app)
        struct lttng_ust_object_data obj;
        struct cds_lfht_iter iter;
        struct cds_lfht_node *node;
+       int ret;
 
        DBG("Destroy tracing for ust app pid %d", app->key.pid);
 
@@ -1781,7 +1787,8 @@ int ust_app_destroy_trace(struct ltt_ust_session *usess, struct ust_app *app)
                goto error_rcu_unlock;
        }
        ua_sess = caa_container_of(node, struct ust_app_session, node);
-       hashtable_del(app->sessions, &iter);
+       ret = hashtable_del(app->sessions, &iter);
+       assert(!ret);
        delete_ust_app_session(app->key.sock, ua_sess);
        obj.handle = ua_sess->handle;
        obj.shm_fd = -1;