[Bf-blender-cvs] [22afe88882e] master: Fix navmesh creation w/ multiple objects

[Campbell Barton]

Commit: 22afe88882e88b15df06a2b5ce3c596d31dd6365
Author: Campbell Barton
Date:   Fri Jan 26 13:10:02 2018 +1100
Branches: master
https://developer.blender.org/rB22afe88882e88b15df06a2b5ce3c596d31dd6365

Fix navmesh creation w/ multiple objects

D2976 by @dertom

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

M	source/blender/editors/mesh/mesh_navmesh.c

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

diff --git a/source/blender/editors/mesh/mesh_navmesh.c b/source/blender/editors/mesh/mesh_navmesh.c
index b95921964eb..740d18951dc 100644
--- a/source/blender/editors/mesh/mesh_navmesh.c
+++ b/source/blender/editors/mesh/mesh_navmesh.c
@@ -72,7 +72,7 @@ static void createVertsTrisData(bContext *C, LinkNode *obs,
 	LinkNode *oblink, *dmlink;
 	DerivedMesh *dm;
 	Scene *scene = CTX_data_scene(C);
-	LinkNode *dms = NULL;
+	LinkNodePair dms_pair = {NULL,NULL};
 
 	int nverts, ntris, *tris;
 	float *verts;
@@ -85,7 +85,7 @@ static void createVertsTrisData(bContext *C, LinkNode *obs,
 		ob = (Object *) oblink->link;
 		dm = mesh_create_derived_no_virtual(scene, ob, NULL, CD_MASK_MESH);
 		DM_ensure_tessface(dm);
-		BLI_linklist_prepend(&dms, dm);
+		BLI_linklist_append(&dms_pair, dm);
 
 		nverts += dm->getNumVerts(dm);
 		nfaces = dm->getNumTessFaces(dm);
@@ -101,6 +101,7 @@ static void createVertsTrisData(bContext *C, LinkNode *obs,
 
 		*r_lay |= ob->lay;
 	}
+	LinkNode *dms = dms_pair.list;
 
 	/* create data */
 	verts = MEM_mallocN(sizeof(float) * 3 * nverts, "createVertsTrisData verts");