diff --git a/pymodbus/transport/transport_serial.py b/pymodbus/transport/transport_serial.py
index 29a29aafa..09f4a7663 100644
--- a/pymodbus/transport/transport_serial.py
+++ b/pymodbus/transport/transport_serial.py
@@ -132,12 +132,10 @@ def abort(self):
     def _read_ready(self):
         """Test if there are data waiting."""
         try:
-            data = self.sync_serial.read(1024)
+            if data := self.sync_serial.read(1024):
+                self._protocol.data_received(data)
         except serial.SerialException as exc:
             self.close(exc=exc)
-        else:
-            if data:
-                self._protocol.data_received(data)
 
     def _write_ready(self):
         """Asynchronously write buffered data."""