fix: golint errors

connection/connection.go

@@ -154,6 +154,9 @@ func (conn *Connection) Open(timeout time.Duration) error {
 		if pair.Local.Type() == ice.CandidateTypeHost && pair.Remote.Type() == ice.CandidateTypeHost {
 			log.Debugf("remote peer %s is in the local network with an address %s", conn.Config.RemoteWgKey.String(), pair.Remote.Address())
 			err = conn.wgProxy.StartLocal(fmt.Sprintf("%s:%d", pair.Remote.Address(), iface.WgPort))
+			if err != nil {
+				return err
+			}
 		} else {
 			err = conn.wgProxy.Start(remoteConn)
 			if err != nil {

iface/mod.go

@@ -83,6 +83,12 @@ func elfMap(root string) (map[string]string, error) {
 	err := filepath.Walk(
 		root,
 		func(path string, info os.FileInfo, err error) error {
+
+			if err != nil {
+				// skip broken files
+				return nil
+			}
+
 			if !info.Mode().IsRegular() {
 				return nil
 			}
@@ -118,11 +124,7 @@ func generateMap() (map[string]string, error) {
 // WireguardModExists returns true if Wireguard kernel module exists.
 func WireguardModExists() bool {
 	_, err := resolveModName("wireguard")
-	if err != nil {
-		return false
-	}
-
-	return true
+	return err == nil
 }
 
 // resolveModName will, given a module name (such as `wireguard`) return an absolute