From 92bfaea3faf870abc78ebbcc6d3ca980b2ed48ce Mon Sep 17 00:00:00 2001
From: Dean Li <deantvv@gmail.com>
Date: Tue, 29 Jun 2021 19:48:20 +0800
Subject: [PATCH] arch: use UResult

---
 src/uu/arch/src/arch.rs | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/uu/arch/src/arch.rs b/src/uu/arch/src/arch.rs
index 955e57389..0f15654cc 100644
--- a/src/uu/arch/src/arch.rs
+++ b/src/uu/arch/src/arch.rs
@@ -12,16 +12,18 @@ extern crate uucore;
 use platform_info::*;
 
 use clap::{crate_version, App};
+use uucore::error::{FromIo, UResult};
 
 static ABOUT: &str = "Display machine architecture";
 static SUMMARY: &str = "Determine architecture name for current machine.";
 
-pub fn uumain(args: impl uucore::Args) -> i32 {
+#[uucore_procs::gen_uumain]
+pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     uu_app().get_matches_from(args);
 
-    let uts = return_if_err!(1, PlatformInfo::new());
+    let uts = PlatformInfo::new().map_err_context(|| "arch: ".to_string())?;
     println!("{}", uts.machine().trim());
-    0
+    Ok(())
 }
 
 pub fn uu_app() -> App<'static, 'static> {