1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/agpgart.h b/include/linux/agpgart.h
index 17a17c55a17..6d59c8efe3b 100644
--- a/include/linux/agpgart.h
+++ b/include/linux/agpgart.h
@@ -111,6 +111,7 @@ typedef struct _agp_unbind {
 } agp_unbind;
 
 #else				/* __KERNEL__ */
+#include <linux/mutex.h>
 
 #define AGPGART_MINOR 175
 
@@ -201,7 +202,7 @@ struct agp_file_private {
 };
 
 struct agp_front_data {
-	struct semaphore agp_mutex;
+	struct mutex agp_mutex;
 	struct agp_controller *current_controller;
 	struct agp_controller *controllers;
 	struct agp_file_private *file_priv_list;