[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [55428] trunk/blender/source/blender/ editors/mesh/editmesh_knife.c: fix for knife tool crash when knife_make_chain_cut() couldn' t create a new face.

[Campbell Barton]

Revision: 55428
          http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=55428
Author:   campbellbarton
Date:     2013-03-19 21:37:22 +0000 (Tue, 19 Mar 2013)
Log Message:
-----------
fix for knife tool crash when knife_make_chain_cut() couldn't create a new face.

Modified Paths:
--------------
    trunk/blender/source/blender/editors/mesh/editmesh_knife.c

Modified: trunk/blender/source/blender/editors/mesh/editmesh_knife.c
===================================================================
--- trunk/blender/source/blender/editors/mesh/editmesh_knife.c	2013-03-19 21:11:45 UTC (rev 55427)
+++ trunk/blender/source/blender/editors/mesh/editmesh_knife.c	2013-03-19 21:37:22 UTC (rev 55428)
@@ -2740,10 +2740,16 @@
 			kfe = ((Ref *)sidechain->first)->ref;
 			if (knife_edge_in_face(kcd, kfe, f)) {
 				knife_make_chain_cut(kcd, f, sidechain, &fnew2);
+				if (fnew2 == NULL) {
+					return;
+				}
 				fhole = f;
 			}
 			else if (knife_edge_in_face(kcd, kfe, fnew)) {
 				knife_make_chain_cut(kcd, fnew, sidechain, &fnew2);
+				if (fnew2 == NULL) {
+					return;
+				}
 				fhole = fnew2;
 			}
 			else {