From a3297aebd0e69af1b09718ab6cb0da34a09622b9 Mon Sep 17 00:00:00 2001
From: TechiePi <techie@techiepi.dev>
Date: Sun, 9 Oct 2022 02:27:05 +0200
Subject: [PATCH] Fix ``FromResidual`` logic

---
 ctru-rs/src/error.rs | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/ctru-rs/src/error.rs b/ctru-rs/src/error.rs
index 38841da..9a1657e 100644
--- a/ctru-rs/src/error.rs
+++ b/ctru-rs/src/error.rs
@@ -29,8 +29,15 @@ impl Try for LibCtruError {
 }
 
 impl FromResidual for LibCtruError {
-    fn from_residual(_: <Self as Try>::Residual) -> Self {
-        Self(1)
+    fn from_residual(e: <Self as Try>::Residual) -> Self {
+        if let Some(e) = e.err() {
+            match e {
+                Error::Os(result) => Self(result),
+                _ => Self(-1),
+            }
+        } else {
+            Self(-1)
+        }
     }
 }