[Bf-blender-cvs] [69aabd3] depsgraph_refactor: Depsgraph: Fix crash when trying to tag NULL for recalc

[Sergey Sharybin]

Commit: 69aabd33af2bed09e4c73f6a204f05ddd705bd74
Author: Sergey Sharybin
Date:   Fri Feb 13 14:15:56 2015 +0500
Branches: depsgraph_refactor
https://developer.blender.org/rB69aabd33af2bed09e4c73f6a204f05ddd705bd74

Depsgraph: Fix crash when trying to tag NULL for recalc

I would say it's better to be avoid to tag NULL for update, but old
depsgraph allowed that and nobody id check for it.

===================================================================

M	source/blender/depsgraph/intern/depsgraph_tag.cpp

===================================================================

diff --git a/source/blender/depsgraph/intern/depsgraph_tag.cpp b/source/blender/depsgraph/intern/depsgraph_tag.cpp
index 245b4fa..44c5615 100644
--- a/source/blender/depsgraph/intern/depsgraph_tag.cpp
+++ b/source/blender/depsgraph/intern/depsgraph_tag.cpp
@@ -136,6 +136,10 @@ void DEG_id_tag_update(ID *id, short flag)
 
 void DEG_id_tag_update_ex(Main *bmain, ID *id, short flag)
 {
+	if(id == NULL) {
+		/* Ideally should not happen, but old depsgraph allowed this. */
+		return;
+	}
 	DEG_DEBUG_PRINTF("%s: id=%s flag=%d\n", __func__, id->name, flag);
 	lib_id_recalc_tag_flag(bmain, id, flag);
 	for (Scene *scene = (Scene *)bmain->scene.first;