864 static int device_new_from_child(sd_device **ret, sd_device *child) {  in device_new_from_child()  argument
870         assert(child);  in device_new_from_child()
872         r = sd_device_get_syspath(child, &syspath);  in device_new_from_child()
894 _public_ int sd_device_get_parent(sd_device *child, sd_device **ret) {  in sd_device_get_parent()  argument
897         assert_return(child, -EINVAL);  in sd_device_get_parent()
899         if (!child->parent_set) {  in sd_device_get_parent()
900                 r = device_new_from_child(&child->parent, child);  in sd_device_get_parent()
904                 child->parent_set = true;  in sd_device_get_parent()
907         if (!child->parent)  in sd_device_get_parent()
911                 *ret = child->parent;  in sd_device_get_parent()
1037 _public_ int sd_device_get_parent_with_subsystem_devtype(sd_device *child, const char *subsystem, c…  in sd_device_get_parent_with_subsystem_devtype()  argument
1041         assert_return(child, -EINVAL);  in sd_device_get_parent_with_subsystem_devtype()
1044         r = sd_device_get_parent(child, &parent);  in sd_device_get_parent_with_subsystem_devtype()