diff --git a/drivers/media/video/mt9m111.c b/drivers/media/video/mt9m111.c
index 4844486d72fb5523274e480985ec7304d5989a11..da0b2d553fd0f28caced38a6b954793f34fc39be 100644
--- a/drivers/media/video/mt9m111.c
+++ b/drivers/media/video/mt9m111.c
@@ -755,7 +755,7 @@ static int mt9m111_set_control(struct soc_camera_device *icd,
 	return ret;
 }
 
-int mt9m111_restore_state(struct soc_camera_device *icd)
+static int mt9m111_restore_state(struct soc_camera_device *icd)
 {
 	struct mt9m111 *mt9m111 = container_of(icd, struct mt9m111, icd);