Clang tidy fix unconventional operator implementation

* The return type must be Class&.

Change-Id: I7db08346788b0aba3a858a76d40f2524fafef298
Reviewed-by: André Hartmann <aha_1980@gmx.de>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/serialbus/qmodbuscommevent_p.h b/src/serialbus/qmodbuscommevent_p.h
index f0ae5a5..094ba11 100644
--- a/src/serialbus/qmodbuscommevent_p.h
+++ b/src/serialbus/qmodbuscommevent_p.h
@@ -89,15 +89,15 @@ public:
         return static_cast<QModbusCommEvent::EventByte> (m_eventByte);
     }
 
-    inline QModbusCommEvent operator=(QModbusCommEvent::EventByte byte) {
+    inline QModbusCommEvent &operator=(QModbusCommEvent::EventByte byte) {
         m_eventByte = byte;
         return *this;
     }
-    inline QModbusCommEvent operator|=(QModbusCommEvent::SendFlag sf) {
+    inline QModbusCommEvent &operator|=(QModbusCommEvent::SendFlag sf) {
         m_eventByte |= quint8(sf);
         return *this;
     }
-    inline QModbusCommEvent operator|=(QModbusCommEvent::ReceiveFlag rf) {
+    inline QModbusCommEvent &operator|=(QModbusCommEvent::ReceiveFlag rf) {
         m_eventByte |= quint8(rf);
         return *this;
     }