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-rw-r--r--drivers/tty/n_hdlc.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/tty/n_hdlc.c b/drivers/tty/n_hdlc.c
index 7b2a466616d6..e2af7b1161f6 100644
--- a/drivers/tty/n_hdlc.c
+++ b/drivers/tty/n_hdlc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
/* generic HDLC line discipline for Linux
*
* Written by Paul Fulghum paulkf@microgate.com