1 files changed, 4 insertions, 5 deletions
diff --git a/regcomp.c b/regcomp.c
index 176aa6b8ef..23cb0ead9a 100644
--- a/regcomp.c
+++ b/regcomp.c
@@ -5663,11 +5663,10 @@ onig_transfer(regex_t* to, regex_t* from)
 extern void
 onig_chain_link_add(regex_t* to, regex_t* add)
 {
-  /* THREAD_ATOMIC_START; */
-  do {
-    REGEX_CHAIN_HEAD(to);
-  } while (IS_NOT_NULL(ATOMIC_PTR_CAS(to->chain, (regex_t* )NULL, add)));
-  /* THREAD_ATOMIC_END; */
+  THREAD_ATOMIC_START;
+  REGEX_CHAIN_HEAD(to);
+  to->chain = add;
+  THREAD_ATOMIC_END;
 }
 
 extern void