vc_uniscr_alloc
new_uniscr = vc_uniscr_alloc(new_cols, new_rows);
u32 **new_uniscr = vc_uniscr_alloc(vc->vc_cols, vc->vc_rows);
uni_lines = vc_uniscr_alloc(vc->vc_cols, vc->vc_rows);