remove redundant NULL checks after RUBY_VM_IFUNC_P

* proc.c (proc_mark): remove redundant check
* vm.c (env_mark): ditto

This doesn't change object code size, but the unstripped
executable is smaller and the code less confusing.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51253 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/proc.c b/proc.c
index 1e8c117ff1..76a004dca1 100644
--- a/proc.c
+++ b/proc.c
@@ -50,7 +50,7 @@ proc_mark(void *ptr)
     RUBY_MARK_UNLESS_NULL(proc->block.self);
     RUBY_MARK_UNLESS_NULL(rb_vm_proc_envval(proc));
     if (proc->block.iseq && RUBY_VM_IFUNC_P(proc->block.iseq)) {
-	RUBY_MARK_UNLESS_NULL((VALUE)(proc->block.iseq));
+	rb_gc_mark((VALUE)(proc->block.iseq));
     }
     RUBY_MARK_LEAVE("proc");
 }