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-rw-r--r--drivers/usb/serial/option.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index ba672cf4e888..eb7d55a8e0ca 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
USB Driver for GSM modems