chore: tidying up outstanding clippy lints

Author: sminez

crates/ninep/examples/server.rs

@@ -166,7 +166,7 @@ impl Serve9p for EchoServer {
             RW => Ok(Stat {
                 fm: FileMeta::file("rw", BAZ),
                 perms: Perm::OWNER_READ | Perm::OWNER_WRITE,
-                n_bytes: self.rw.as_bytes().len() as u64,
+                n_bytes: self.rw.len() as u64,
                 last_accesses: SystemTime::now(),
                 last_modified: SystemTime::now(),
                 owner: uname.into(),
@@ -269,7 +269,7 @@ impl Serve9p for EchoServer {
                 Stat {
                     fm: FileMeta::file("rw", RW),
                     perms: Perm::OWNER_READ | Perm::OWNER_WRITE,
-                    n_bytes: self.rw.as_bytes().len() as u64,
+                    n_bytes: self.rw.len() as u64,
                     last_accesses: SystemTime::now(),
                     last_modified: SystemTime::now(),
                     owner: uname.into(),

crates/ninep/src/server.rs

@@ -820,11 +820,7 @@ where
                 match outcome {
                     ReadOutcome::Immediate(data) => data,
                     ReadOutcome::Blocked(chan) => {
-                        // Cloning the stream can
-                        let mut stream = match self.stream.try_clone() {
-                            Ok(stream) => stream,
-                            Err(err) => return Err(err),
-                        };
+                        let mut stream = self.stream.try_clone()?;
 
                         spawn(move || {
                             let data = chan.recv().unwrap_or_default();

src/fsys/buffer.rs

@@ -366,7 +366,7 @@ impl BufferNode {
         trace!(id=%self.id, %fname, "refreshing file stat");
         let content = self.current_file_content_as_string(fname, tx)?;
         let stat = self.file_stats.get_mut(fname)?;
-        stat.n_bytes = content.as_bytes().len() as u64;
+        stat.n_bytes = content.len() as u64;
 
         Some(stat.clone())
     }

src/ziplist.rs

@@ -115,11 +115,7 @@ impl<T> ZipList<T> {
         I: IntoIterator<Item = T>,
     {
         let mut it = iter.into_iter();
-
-        let focus = match it.next() {
-            Some(t) => t,
-            None => return None,
-        };
+        let focus = it.next()?;
 
         Some(Self {
             up: VecDeque::default(),