. . .

common/cli_hush.c

int u_boot_hush_start(void)
{
        if (top_vars == NULL) {
                top_vars = malloc(sizeof(struct variables));
                top_vars->name = "HUSH_VERSION";
                top_vars->value = "0.01";
                top_vars->next = NULL;
                top_vars->flg_export = 0;
                top_vars->flg_read_only = 1;
#ifdef CONFIG_NEEDS_MANUAL_RELOC
                u_boot_hush_reloc();
#endif
        }
        return 0;
}