* eval.c (return_jump): fix "can't across thread" error message

  when no thread associated.
  http://www.namikilab.tuat.ac.jp/~sasada/diary/200507.html#d31


git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@8920 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/eval.c b/eval.c
index 9811c71d9..7ad94f1e6 100644
--- a/eval.c
+++ b/eval.c
@@ -4763,7 +4763,7 @@ return_jump(retval)
 	    tt->retval = retval;
 	    JUMP_TAG(TAG_RETURN);
 	}
-	if (tt->tag == PROT_THREAD) {
+	if (tt->tag == PROT_THREAD && tt->prev) {
 	    rb_raise(rb_eThreadError, "return can't jump across threads");
 	}
 	tt = tt->prev;