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-rw-r--r--libio/wgenops.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/libio/wgenops.c b/libio/wgenops.c
index bfcef9e9e1..f021e8a3a2 100644
--- a/libio/wgenops.c
+++ b/libio/wgenops.c
@@ -210,7 +210,8 @@ _IO_wdefault_finish (fp, dummy)
     }
 
 #ifdef _IO_MTSAFE_IO
-  _IO_lock_fini (*fp->_lock);
+  if (fp->_lock != NULL)
+    _IO_lock_fini (*fp->_lock);
 #endif
 
   _IO_un_link ((struct _IO_FILE_plus *) fp);