Refactor and clean up all code

This includes:
- using idiomatic Rust
- limiting the scope of unsafe blocks
- simplifying code

1 files changed, 10 insertions, 10 deletions

diff --git a/src/config.rs b/src/config.rs
index 6aa6d10..329f7a6 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -30,21 +30,21 @@ pub struct RawConfig {
 
 fn config_otp_slot_to_option(value: u8) -> Option<u8> {
     if value < 3 {
-        return Some(value);
+        Some(value)
+    } else {
+        None
     }
-    None
 }
 
 fn option_to_config_otp_slot(value: Option<u8>) -> Result<u8, Error> {
-    match value {
-        Some(value) => {
-            if value < 3 {
-                Ok(value)
-            } else {
-                Err(LibraryError::InvalidSlot.into())
-            }
+    if let Some(value) = value {
+        if value < 3 {
+            Ok(value)
+        } else {
+            Err(LibraryError::InvalidSlot.into())
         }
-        None => Ok(255),
+    } else {
+        Ok(255)
     }
 }