Fix clippy warning (#301)

Author: lookback-hugotunius

dtls/src/conn/mod.rs

@@ -449,9 +449,7 @@ impl DTLSConn {
 
             tokio::select! {
                 result = self.write_packets(pkts) => {
-                    if let Err(err) = result {
-                        return Err(err);
-                    }
+                    result?;
                 }
                 _ = timer.as_mut() => return Err(Error::ErrDeadlineExceeded),
             }

turn/src/client/relay_conn.rs

@@ -228,9 +228,7 @@ impl<T: RelayConnObserver + Send + Sync> RelayConnInternal<T> {
                 }
             }
         }
-        if let Err(err) = result {
-            return Err(err);
-        }
+        result?;
 
         let number = {
             let (bind_st, bind_at, bind_number, bind_addr) = {

turn/src/server/request.rs

@@ -850,11 +850,9 @@ pub(crate) async fn build_and_send_err(
     msg: Message,
     err: Error,
 ) -> Result<()> {
-    if let Err(send_err) = build_and_send(conn, dst, msg).await {
-        Err(send_err)
-    } else {
-        Err(err)
-    }
+    build_and_send(conn, dst, msg).await?;
+
+    Err(err)
 }
 
 pub(crate) fn build_msg(

util/src/vnet/net.rs

@@ -44,12 +44,7 @@ pub(crate) struct VNetInternal {
 
 impl VNetInternal {
     fn get_interface(&self, ifc_name: &str) -> Option<&Interface> {
-        for ifc in &self.interfaces {
-            if ifc.name == ifc_name {
-                return Some(ifc);
-            }
-        }
-        None
+        self.interfaces.iter().find(|ifc| ifc.name == ifc_name)
     }
 }
 

webrtc/src/peer_connection/peer_connection_internal.rs

@@ -920,6 +920,11 @@ impl PeerConnectionInternal {
                                     sender.set_negotiated();
                                 }
                                 let media_transceivers = vec![t];
+
+                                // NB: The below could use `then_some`, but with our current MSRV
+                                // it's not possible to actually do this. The clippy version that
+                                // ships with 1.64.0 complains about this so we disable it for now.
+                                #[allow(clippy::unnecessary_lazy_evaluations)]
                                 media_sections.push(MediaSection {
                                     id: mid_value.to_owned(),
                                     transceivers: media_transceivers,