Returning no error on ulog check fail #5993

int
lane_check(PMEMobjpool *pop)
{
	int err = 0;
	/* ... */
	for (j = 0; j < pop->nlanes; ++j) {
		/* ... */
		if (ulog_check(/* ... */) != 0) {
			LOG(2, "lane %" PRIu64 " internal redo failed: %d", j, err);
			return err; /* return 0 */
		}
	}
	return 0;
}