Add header file macro definition.
Signed-off-by: Li zeming <zeming@nfschina.com>
---
drivers/macintosh/ams/ams.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/macintosh/ams/ams.h b/drivers/macintosh/ams/ams.h
index 935bdd9cd9a6..5ec5547f151b 100644
--- a/drivers/macintosh/ams/ams.h
+++ b/drivers/macintosh/ams/ams.h
@@ -1,4 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _AMS_H
+#define _AMS_H
+
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/kthread.h>
@@ -69,3 +72,4 @@ extern int ams_i2c_init(struct device_node *np);
extern int ams_input_init(void);
extern void ams_input_exit(void);
+#endif
--
2.18.2