[PATCH] serial: sh-sci: Add missing header guard

[Prabhakar]

From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>

Add header guard to sh-sci.h to prevent multiple inclusions of the
header file.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
---
 drivers/tty/serial/sh-sci.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/tty/serial/sh-sci.h b/drivers/tty/serial/sh-sci.h
index 951681aba586..22f877e2a17e 100644
--- a/drivers/tty/serial/sh-sci.h
+++ b/drivers/tty/serial/sh-sci.h
@@ -1,4 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __SH_SCI_H__
+#define __SH_SCI_H__
+
 #include <linux/bitops.h>
 #include <linux/serial_core.h>
 #include <linux/io.h>
@@ -176,3 +179,5 @@ enum {
 	(((port)->type == PORT_SCI) ? SCI_TDxE_CLEAR : SCIF_TDxE_CLEAR)
 #define SCxSR_BREAK_CLEAR(port) \
 	(((port)->type == PORT_SCI) ? SCI_BREAK_CLEAR : SCIF_BREAK_CLEAR)
+
+#endif /* __SH_SCI_H__ */
-- 
2.51.0