[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [41619] trunk/blender/source/blender/ editors/space_clip/tracking_ops.c: fix for error using freed memory

[Campbell Barton]

Revision: 41619
          http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=41619
Author:   campbellbarton
Date:     2011-11-07 15:41:20 +0000 (Mon, 07 Nov 2011)
Log Message:
-----------
fix for error using freed memory

Modified Paths:
--------------
    trunk/blender/source/blender/editors/space_clip/tracking_ops.c

Modified: trunk/blender/source/blender/editors/space_clip/tracking_ops.c
===================================================================
--- trunk/blender/source/blender/editors/space_clip/tracking_ops.c	2011-11-07 15:32:32 UTC (rev 41618)
+++ trunk/blender/source/blender/editors/space_clip/tracking_ops.c	2011-11-07 15:41:20 UTC (rev 41619)
@@ -2873,10 +2873,11 @@
 
 					BKE_tracking_free_track(track);
 					BLI_freelinkN(&clip->tracking.tracks, track);
+					track= NULL;
 				}
 
 				/* happens when all tracking segments are not long enough */
-				if(track->markersnr==0) {
+				if(track && track->markersnr==0) {
 					if(track==act_track)
 						clip->tracking.act_track= NULL;