[PATCH] vga_switcheroo: Add include guard

[Ozan Çağlayan]

Guard vga_switcheroo.h against multiple inclusion.

Signed-off-by: Ozan Çağlayan <ozancag at gmail.com>
---
 include/linux/vga_switcheroo.h |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/linux/vga_switcheroo.h b/include/linux/vga_switcheroo.h
index b455c7c..9a1cf11 100644
--- a/include/linux/vga_switcheroo.h
+++ b/include/linux/vga_switcheroo.h
@@ -7,6 +7,9 @@
  * vga_switcheroo.h - Support for laptop with dual GPU using one set of outputs
  */
 
+#ifndef _LINUX_VGA_SWITCHEROO_H_
+#define _LINUX_VGA_SWITCHEROO_H_
+
 #include <linux/fb.h>
 
 enum vga_switcheroo_state {
@@ -64,3 +67,4 @@ static inline void vga_switcheroo_unregister_handler(void) {}
 static inline int vga_switcheroo_process_delayed_switch(void) { return 0; }
 
 #endif
+#endif /* _LINUX_VGA_SWITCHEROO_H_ */
-- 
1.7.10.2