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-rw-r--r--libio/genops.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libio/genops.c b/libio/genops.c
index 0a81a5d101..61e59f95a1 100644
--- a/libio/genops.c
+++ b/libio/genops.c
@@ -822,7 +822,7 @@ _IO_flush_all_lockp (int do_lock)
   int last_stamp;
 
 #ifdef _IO_MTSAFE_IO
-  __libc_cleanup_region_start (do_lock, flush_cleanup, 0);
+  __libc_cleanup_region_start (do_lock, flush_cleanup, NULL);
   if (do_lock)
     _IO_lock_lock (list_all_lock);
 #endif