diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index 69ef6cda1ce9..59fd736a1fb9 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -133,6 +133,11 @@ void exynos_drm_gem_destroy(struct exynos_drm_gem *exynos_gem)
 	kfree(exynos_gem);
 }
 
+static void exynos_drm_gem_free_object(struct drm_gem_object *obj)
+{
+	exynos_drm_gem_destroy(to_exynos_gem(obj));
+}
+
 static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
 	.open = drm_gem_vm_open,
 	.close = drm_gem_vm_close,
@@ -318,11 +323,6 @@ int exynos_drm_gem_get_ioctl(struct drm_device *dev, void *data,
 	return 0;
 }
 
-void exynos_drm_gem_free_object(struct drm_gem_object *obj)
-{
-	exynos_drm_gem_destroy(to_exynos_gem(obj));
-}
-
 int exynos_drm_gem_dumb_create(struct drm_file *file_priv,
 			       struct drm_device *dev,
 			       struct drm_mode_create_dumb *args)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h
index 79d7e1a87419..8b5bd20ae8c1 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h
@@ -88,9 +88,6 @@ static inline void exynos_drm_gem_put(struct exynos_drm_gem *exynos_gem)
 int exynos_drm_gem_get_ioctl(struct drm_device *dev, void *data,
 				      struct drm_file *file_priv);
 
-/* free gem object. */
-void exynos_drm_gem_free_object(struct drm_gem_object *obj);
-
 /* create memory region for drm framebuffer. */
 int exynos_drm_gem_dumb_create(struct drm_file *file_priv,
 			       struct drm_device *dev,