* io.c (rb_io_inspect): Cannot access fptr->fd if fptr is NULL.

  This fixes a coredump caused by: ruby -e "class X < IO; def
  initialize; end; end; p X.new.inspect"



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@23061 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 1 deletions

diff --git a/io.c b/io.c
index 0a984a18db..19ea6132be 100644
--- a/io.c
+++ b/io.c
@@ -1387,8 +1387,9 @@ rb_io_inspect(VALUE obj)
     const char *st = "";
 
     fptr = RFILE(rb_io_taint_check(obj))->fptr;
+    if (!fptr) return rb_any_to_s(obj);
     cname = rb_obj_classname(obj);
-    if (!fptr || NIL_P(fptr->pathv)) {
+    if (NIL_P(fptr->pathv)) {
         if (fptr->fd < 0) {
             path = "";
             st = "(closed)";