fix invalid pointer usage in bezierPatchDeleteList(), bug 11807

1 files changed, 5 insertions, 2 deletions

diff --git a/src/glu/sgi/libnurbs/interface/bezierPatch.cc b/src/glu/sgi/libnurbs/interface/bezierPatch.cc
index 836ae94e0a6..5b7bda1a001 100644
--- a/src/glu/sgi/libnurbs/interface/bezierPatch.cc
+++ b/src/glu/sgi/libnurbs/interface/bezierPatch.cc
@@ -111,8 +111,11 @@ void bezierPatchDelete(bezierPatch *b)
 void bezierPatchDeleteList(bezierPatch *b)
 {
   bezierPatch *temp;
-  for(temp = b; temp != NULL; temp = temp->next)
-    bezierPatchDelete(temp);
+  while (b != NULL) {
+    temp = b;
+    b = b->next;
+    bezierPatchDelete(temp);    
+  }
 }
 
 bezierPatch* bezierPatchInsert(bezierPatch *list, bezierPatch *b)