Bugfix [#29125] Motion paths odd behaviour

* Made it impossible to try to calculate/create new motion paths lasting 0
frames (i.e. 250 to 250) since we cannot allocate a zero-length array for these.
Start frame can now be at most end-frame - 1, and end frame at least start frame
+ 1

* If an invalid configuration does occur, warnings/reports will now be issued in
response to this instead of silently failing (as per this bugreport).

1 files changed, 2 insertions, 2 deletions

diff --git a/source/blender/editors/armature/poseobject.c b/source/blender/editors/armature/poseobject.c
index e89674e8a37..993c8420576 100644
--- a/source/blender/editors/armature/poseobject.c
+++ b/source/blender/editors/armature/poseobject.c
@@ -199,7 +199,7 @@ void ED_pose_recalculate_paths(Scene *scene, Object *ob)
 /* For the object with pose/action: create path curves for selected bones 
  * This recalculates the WHOLE path within the pchan->pathsf and pchan->pathef range
  */
-static int pose_calculate_paths_exec (bContext *C, wmOperator *UNUSED(op))
+static int pose_calculate_paths_exec (bContext *C, wmOperator *op)
 {
 	ScrArea *sa= CTX_wm_area(C);
 	Scene *scene= CTX_data_scene(C);
@@ -218,7 +218,7 @@ static int pose_calculate_paths_exec (bContext *C, wmOperator *UNUSED(op))
 	CTX_DATA_BEGIN(C, bPoseChannel*, pchan, selected_pose_bones) 
 	{
 		/* verify makes sure that the selected bone has a bone with the appropriate settings */
-		animviz_verify_motionpaths(scene, ob, pchan);
+		animviz_verify_motionpaths(op->reports, scene, ob, pchan);
 	}
 	CTX_DATA_END;