diff --git a/bluetooth/1.0/default/vendor_interface.cc b/bluetooth/1.0/default/vendor_interface.cc
index e5f02f3..d56e344 100644
--- a/bluetooth/1.0/default/vendor_interface.cc
+++ b/bluetooth/1.0/default/vendor_interface.cc
@@ -294,6 +294,7 @@
     lib_interface_->op(BT_VND_OP_POWER_CTRL, &power_state);
 
     lib_interface_->cleanup();
+    lib_interface_ = nullptr;
   }
 
   if (lib_handle_ != nullptr) {
diff --git a/bluetooth/1.0/default/vendor_interface.h b/bluetooth/1.0/default/vendor_interface.h
index 36f4e1b..1d69040 100644
--- a/bluetooth/1.0/default/vendor_interface.h
+++ b/bluetooth/1.0/default/vendor_interface.h
@@ -58,15 +58,15 @@
 
   void HandleIncomingEvent(const hidl_vec<uint8_t>& hci_packet);
 
-  void* lib_handle_;
-  bt_vendor_interface_t* lib_interface_;
+  void* lib_handle_ = nullptr;
+  bt_vendor_interface_t* lib_interface_ = nullptr;
   async::AsyncFdWatcher fd_watcher_;
   InitializeCompleteCallback initialize_complete_cb_;
-  hci::HciProtocol* hci_;
+  hci::HciProtocol* hci_ = nullptr;
 
   PacketReadCallback event_cb_;
 
-  FirmwareStartupTimer* firmware_startup_timer_;
+  FirmwareStartupTimer* firmware_startup_timer_ = nullptr;
 };
 
 }  // namespace implementation
diff --git a/bluetooth/1.0/vts/functional/VtsHalBluetoothV1_0TargetTest.cpp b/bluetooth/1.0/vts/functional/VtsHalBluetoothV1_0TargetTest.cpp
index 88d4234..90fbb3f 100644
--- a/bluetooth/1.0/vts/functional/VtsHalBluetoothV1_0TargetTest.cpp
+++ b/bluetooth/1.0/vts/functional/VtsHalBluetoothV1_0TargetTest.cpp
@@ -26,7 +26,10 @@
 #include <VtsHalHidlTargetCallbackBase.h>
 #include <VtsHalHidlTargetTestBase.h>
 #include <VtsHalHidlTargetTestEnvBase.h>
+
+#include <chrono>
 #include <queue>
+#include <thread>
 
 using ::android::sp;
 using ::android::hardware::hidl_death_recipient;
@@ -46,6 +49,7 @@
 #define WAIT_FOR_HCI_EVENT_TIMEOUT std::chrono::milliseconds(2000)
 #define WAIT_FOR_SCO_DATA_TIMEOUT std::chrono::milliseconds(1000)
 #define WAIT_FOR_ACL_DATA_TIMEOUT std::chrono::milliseconds(1000)
+#define INTERFACE_CLOSE_DELAY_MS std::chrono::milliseconds(200)
 
 #define COMMAND_HCI_SHOULD_BE_UNKNOWN \
   { 0xff, 0x3B, 0x08, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 }
@@ -197,8 +201,10 @@
   }
 
   virtual void TearDown() override {
+    ALOGI("TearDown");
     // Should not be checked in production code
     ASSERT_TRUE(bluetooth->close().isOk());
+    std::this_thread::sleep_for(INTERFACE_CLOSE_DELAY_MS);
     handle_no_ops();
     EXPECT_EQ(static_cast<size_t>(0), event_queue.size());
     EXPECT_EQ(static_cast<size_t>(0), sco_queue.size());
@@ -222,9 +228,10 @@
 
   class BluetoothHciDeathRecipient : public hidl_death_recipient {
    public:
-    virtual void serviceDied(
+    void serviceDied(
         uint64_t /*cookie*/,
-        const android::wp<::android::hidl::base::V1_0::IBase>& /*who*/) {
+        const android::wp<::android::hidl::base::V1_0::IBase>& /*who*/)
+        override {
       FAIL();
     }
   };
@@ -308,7 +315,7 @@
     if (event_is_no_op) {
       event_queue.pop();
     } else {
-      return;
+      break;
     }
   }
 }