[Filesystem] Fixed invalid unregistration of StateListener

Issue occurred when running filesystem manual TCTs, first test passed,
the second test didn't pass because static FilesystemManager didn't
unregister the listener properly.

[Verification]
Filesystem manual TCT passed.
Filesystem auto 100% pass.

Change-Id: I185f541b15c146c3b62fb1dbfd5df48c0a9dd5e4

diff --git a/src/common/filesystem/filesystem_provider_deviced.cc b/src/common/filesystem/filesystem_provider_deviced.cc
index 9bfb5ea..f179be0 100644 (file)
--- a/src/common/filesystem/filesystem_provider_deviced.cc
+++ b/src/common/filesystem/filesystem_provider_deviced.cc
@@ -211,6 +211,7 @@ void FilesystemProviderDeviced::UnregisterDeviceChangeState() {
     LoggerD("Dbus signal handling unsubscription");
     g_dbus_connection_signal_unsubscribe(dbus_, block_signal_subscribe_id_);
   }
+  block_signal_subscribe_id_ = 0;
   device_changed_callback_ = nullptr;
 }