fixed memory leak for ble_hs_flow_timer and ble_hs_stop_terminate_tmo

nimble/host/src/ble_hs.c

@@ -830,4 +830,8 @@ ble_hs_deinit(void)
     ble_gap_deinit();
 
     ble_hs_hci_deinit();
+
+    ble_hs_flow_stop();
+
+    ble_hs_stop_deinit();
 }

nimble/host/src/ble_hs_flow.c

@@ -273,3 +273,11 @@ ble_hs_flow_startup(void)
 
     return 0;
 }
+
+void
+ble_hs_flow_stop(void)
+{
+#if MYNEWT_VAL(BLE_HS_FLOW_CTRL)
+    ble_npl_callout_deinit(&ble_hs_flow_timer);
+#endif
+}

nimble/host/src/ble_hs_flow_priv.h

@@ -28,7 +28,7 @@ extern "C" {
 void ble_hs_flow_connection_broken(uint16_t conn_handle);
 void ble_hs_flow_track_data_mbuf(struct os_mbuf *om);
 int ble_hs_flow_startup(void);
-
+void ble_hs_flow_stop(void);
 #ifdef __cplusplus
 }
 #endif

nimble/host/src/ble_hs_priv.h

@@ -132,6 +132,7 @@ void ble_hs_timer_resched(void);
 void ble_hs_notifications_sched(void);
 struct ble_npl_eventq *ble_hs_evq_get(void);
 void ble_hs_stop_init(void);
+void ble_hs_stop_deinit(void);
 
 struct ble_mqueue {
     STAILQ_HEAD(, os_mbuf_pkthdr) head;

nimble/host/src/ble_hs_stop.c

@@ -281,3 +281,9 @@ ble_hs_stop_init(void)
                          ble_hs_stop_terminate_timeout_cb, NULL);
 #endif
 }
+
+void
+ble_hs_stop_deinit(void)
+{
+    ble_npl_callout_deinit(&ble_hs_stop_terminate_tmo);
+}