p_vlm destruction fixes

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

src/control/core.c

@@ -173,6 +173,8 @@ void libvlc_release( libvlc_instance_t *p_instance )
     {
         vlc_mutex_destroy( lock );
         vlc_mutex_destroy( &p_instance->event_callback_lock );
+        if( p_instance->p_vlm )
+            vlm_Delete( p_instance->p_vlm );
         libvlc_InternalCleanup( p_instance->p_libvlc_int );
         libvlc_InternalDestroy( p_instance->p_libvlc_int );
         free( p_instance );

src/control/vlm.c

@@ -167,6 +167,7 @@ void libvlc_vlm_release( libvlc_instance_t *p_instance,
     VLM(p_vlm);
 
     vlm_Delete( p_vlm );
+    p_instance->p_vlm = NULL;
 }
 
 void libvlc_vlm_add_broadcast( libvlc_instance_t *p_instance,