diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
index c42765b3a060bc6b28b0f7a55f0231489afe651c..0495c94a23d7e96a9c3554b99893b6b0f63e7302 100644
--- a/drivers/usb/gadget/configfs.c
+++ b/drivers/usb/gadget/configfs.c
@@ -1295,6 +1295,7 @@ static void purge_configs_funcs(struct gadget_info *gi)
 			}
 		}
 		c->next_interface_id = 0;
+		memset(c->interface, 0, sizeof(c->interface));
 		c->superspeed = 0;
 		c->highspeed = 0;
 		c->fullspeed = 0;