diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c b/drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c
index 0d3661b5eaf1ad92f664b9e8d7d80e4a4d8acd45..fbffb102ef78710dc34835047d526387ff707265 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c
@@ -129,7 +129,7 @@ int s5p_mfc_release_firmware(struct s5p_mfc_dev *dev)
 	return 0;
 }
 
-int s5p_mfc_bus_reset(struct s5p_mfc_dev *dev)
+static int s5p_mfc_bus_reset(struct s5p_mfc_dev *dev)
 {
 	unsigned int status;
 	unsigned long timeout;