[Bf-blender-cvs] [945f32e] master: Fix crash with recent refactor of customdata writing.

[Bastien Montagne]

Commit: 945f32e66d6ada2a05b7700a197209b9c66b4682
Author: Bastien Montagne
Date:   Wed Jul 22 11:54:53 2015 +0200
Branches: master
https://developer.blender.org/rB945f32e66d6ada2a05b7700a197209b9c66b4682

Fix crash with recent refactor of customdata writing.

Caused by own rBff3d535bc2a6309 - since we now only write the exact amount of layers
needed to store saved customdata, we have to adjust CustomData->maxlayer too.

Otherwise, on next read, customdata code believes it has more layers allocated than
actual number.

Issue reported by Campbell over IRC, thanks.

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

M	source/blender/blenkernel/intern/customdata.c

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

diff --git a/source/blender/blenkernel/intern/customdata.c b/source/blender/blenkernel/intern/customdata.c
index abfe746..b1740d4 100644
--- a/source/blender/blenkernel/intern/customdata.c
+++ b/source/blender/blenkernel/intern/customdata.c
@@ -3251,6 +3251,7 @@ void CustomData_file_write_prepare(
 		}
 	}
 	BLI_assert(j == data->totlayer);
+	data->maxlayer = data->totlayer;  /* We only write that much of data! */
 	*r_write_layers = write_layers;
 }