random.c: default seed mark

* random.c (Init_Random_default): since seed is marked by
  random_mark, no needs to mark itself as a global variable.
  allocate Random instance before making the seed value, to get
  rid of the potential risk of GC during the allocation.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54927 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 5 deletions

diff --git a/random.c b/random.c
index 65db49d677..72b0f46b0f 100644
--- a/random.c
+++ b/random.c
@@ -1544,13 +1544,10 @@ Init_Random_default(void)
 {
     rb_random_t *r = &default_rand;
     struct MT *mt = &r->mt;
-    VALUE v;
+    VALUE v = TypedData_Wrap_Struct(rb_cRandom, &random_data_type, r);
 
-    r->seed = init_randomseed(mt);
-    rb_global_variable(&r->seed);
-
-    v = TypedData_Wrap_Struct(rb_cRandom, &random_data_type, r);
     rb_gc_register_mark_object(v);
+    r->seed = init_randomseed(mt);
 
     return v;
 }