[Bf-blender-cvs] [9ac5eae433c] blender2.8: GP: Fix unreported crash when click+drag in edit mode

[Antonioya]

Commit: 9ac5eae433ca77200e79ccdc0096e5e8f41eef34
Author: Antonioya
Date:   Wed Sep 26 16:07:44 2018 +0200
Branches: blender2.8
https://developer.blender.org/rB9ac5eae433ca77200e79ccdc0096e5e8f41eef34

GP: Fix unreported crash when click+drag in edit mode

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

M	source/blender/editors/transform/transform_generics.c

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

diff --git a/source/blender/editors/transform/transform_generics.c b/source/blender/editors/transform/transform_generics.c
index f9a34fcaaa9..7a852f36139 100644
--- a/source/blender/editors/transform/transform_generics.c
+++ b/source/blender/editors/transform/transform_generics.c
@@ -1863,11 +1863,12 @@ void calculateCenterCursor(TransInfo *t, float r_center[3])
 
 			td = tc->data;
 			Object *ob = td->ob;
-
-			sub_v3_v3v3(r_center, r_center, ob->obmat[3]);
-			copy_m3_m4(mat, ob->obmat);
-			invert_m3_m3(imat, mat);
-			mul_m3_v3(imat, r_center);
+			if (ob) {
+				sub_v3_v3v3(r_center, r_center, ob->obmat[3]);
+				copy_m3_m4(mat, ob->obmat);
+				invert_m3_m3(imat, mat);
+				mul_m3_v3(imat, r_center);
+			}
 		}
 	}
 }