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-rw-r--r--drivers/tty/pty.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index 26dcb3b..6433844 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 1991, 1992 Linus Torvalds
*
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