[Bf-blender-cvs] [0c122d64d2a] master: Fix T51734: batch-generate previews crashes on some materials.

[Brecht Van Lommel]

Commit: 0c122d64d2acffd3a5cd5a898e3b7791c5c66878
Author: Brecht Van Lommel
Date:   Sun Jul 2 23:35:40 2017 +0200
Branches: master
https://developer.blender.org/rB0c122d64d2acffd3a5cd5a898e3b7791c5c66878

Fix T51734: batch-generate previews crashes on some materials.

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M	source/blender/editors/render/render_preview.c

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diff --git a/source/blender/editors/render/render_preview.c b/source/blender/editors/render/render_preview.c
index fa18b82507e..35d772afae7 100644
--- a/source/blender/editors/render/render_preview.c
+++ b/source/blender/editors/render/render_preview.c
@@ -1180,7 +1180,7 @@ void ED_preview_icon_render(Main *bmain, Scene *scene, ID *id, unsigned int *rec
 
 	ip.bmain = bmain;
 	ip.scene = scene;
-	ip.owner = id;
+	ip.owner = BKE_previewimg_id_ensure(id);
 	ip.id = id;
 
 	icon_preview_add_size(&ip, rect, sizex, sizey);