Lua: check vlclua_get_playlist_internal() for NULL

modules/lua/libs/input.c

@@ -62,9 +62,16 @@ input_thread_t * vlclua_get_input_internal( lua_State *L )
             return p_input;
         }
     }
+
     playlist_t *p_playlist = vlclua_get_playlist_internal( L );
-    input_thread_t *p_input = playlist_CurrentInput( p_playlist );
-    return p_input;
+    if( p_playlist != NULL )
+    {
+        input_thread_t *p_input = playlist_CurrentInput( p_playlist );
+        if( p_input )
+            return p_input;
+    }
+
+    return NULL;
 }
 
 static int vlclua_input_item_info( lua_State *L )

modules/lua/libs/objects.c

@@ -128,11 +128,16 @@ static int vlclua_get_vout( lua_State *L )
 static int vlclua_get_aout( lua_State *L )
 {
     playlist_t *p_playlist = vlclua_get_playlist_internal( L );
-    audio_output_t *p_aout = playlist_GetAout( p_playlist );
-    if( p_aout != NULL )
-        vlclua_push_vlc_object( L, (vlc_object_t *)p_aout );
-    else
-        lua_pushnil( L );
+    if( p_playlist != NULL )
+    {
+        audio_output_t *p_aout = playlist_GetAout( p_playlist );
+        if( p_aout != NULL )
+        {
+            vlclua_push_vlc_object( L, (vlc_object_t *)p_aout );
+            return 1;
+        }
+    }
+    lua_pushnil( L );
     return 1;
 }
 /*****************************************************************************