system/EventFD: Get() returns FileDescriptor

src/event/WakeFD.hxx

@@ -38,7 +38,11 @@ class WakeFD {
 
 public:
 	SocketDescriptor GetSocket() const noexcept {
+#ifdef USE_EVENTFD
+		return SocketDescriptor::FromFileDescriptor(fd.Get());
+#else
 		return SocketDescriptor(fd.Get());
+#endif
 	}
 
 	bool Read() noexcept {

src/system/EventFD.hxx

@@ -44,8 +44,8 @@ public:
 	 */
 	EventFD();
 
-	int Get() const noexcept {
-		return fd.Get();
+	FileDescriptor Get() const noexcept {
+		return fd;
 	}
 
 	/**