[Bf-blender-cvs] [fcff2a57518] master: Fix T61816: Crash No Face Index Array Modifier

[Jeroen Bakker]

Commit: fcff2a57518ffaf509be7a3bdb57e7e9ff8f85b5
Author: Jeroen Bakker
Date:   Fri Mar 22 15:18:07 2019 +0100
Branches: master
https://developer.blender.org/rBfcff2a57518ffaf509be7a3bdb57e7e9ff8f85b5

Fix T61816: Crash No Face Index Array Modifier

Differential Revision: https://developer.blender.org/D4576

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

M	source/blender/draw/intern/draw_cache_impl_mesh.c

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

diff --git a/source/blender/draw/intern/draw_cache_impl_mesh.c b/source/blender/draw/intern/draw_cache_impl_mesh.c
index c00a639028f..e953ae21ed6 100644
--- a/source/blender/draw/intern/draw_cache_impl_mesh.c
+++ b/source/blender/draw/intern/draw_cache_impl_mesh.c
@@ -2402,10 +2402,12 @@ static void mesh_create_edit_vertex_loops(
 						/* TODO find a more efficient way to do that. */
 						BMLoop *loop;
 						BMIter iter_loop;
-						BM_ITER_ELEM (loop, &iter_loop, efa, BM_LOOPS_OF_FACE) {
-							if (loop->e == eed) {
-								mesh_render_data_loop_flag(rdata, loop, cd_loop_uv_offset, &eattr);
-								break;
+						if (efa) {
+							BM_ITER_ELEM (loop, &iter_loop, efa, BM_LOOPS_OF_FACE) {
+								if (loop->e == eed) {
+									mesh_render_data_loop_flag(rdata, loop, cd_loop_uv_offset, &eattr);
+									break;
+								}
 							}
 						}
 					}