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-rw-r--r--posix/regcomp.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/posix/regcomp.c b/posix/regcomp.c
index 68e2bdab92..2053b024dc 100644
--- a/posix/regcomp.c
+++ b/posix/regcomp.c
@@ -774,6 +774,8 @@ re_compile_internal (preg, pattern, length, syntax)
     }
   preg->used = sizeof (re_dfa_t);
 
+  __libc_lock_init (dfa->lock);
+
   err = init_dfa (dfa, length);
   if (BE (err != REG_NOERROR, 0))
     {