diff --git a/drivers/usb/chipidea/usbmisc_imx6q.c b/drivers/usb/chipidea/usbmisc_imx6q.c
index a1bce391e8256dd9b8da3b9413000ec09cd3c97b..113fcea77bdf22496e8b786f64e49289709a029b 100644
--- a/drivers/usb/chipidea/usbmisc_imx6q.c
+++ b/drivers/usb/chipidea/usbmisc_imx6q.c
@@ -144,13 +144,13 @@ static struct platform_driver usbmisc_imx6q_driver = {
 	 },
 };
 
-int __init usbmisc_imx6q_drv_init(void)
+static int __init usbmisc_imx6q_drv_init(void)
 {
 	return platform_driver_register(&usbmisc_imx6q_driver);
 }
 subsys_initcall(usbmisc_imx6q_drv_init);
 
-void __exit usbmisc_imx6q_drv_exit(void)
+static void __exit usbmisc_imx6q_drv_exit(void)
 {
 	platform_driver_unregister(&usbmisc_imx6q_driver);
 }