Index: /trunk/src/VBox/Main/src-server/darwin/iokit.cpp
===================================================================
--- /trunk/src/VBox/Main/src-server/darwin/iokit.cpp	(revision 74866)
+++ /trunk/src/VBox/Main/src-server/darwin/iokit.cpp	(revision 74867)
@@ -1692,5 +1692,5 @@
                            does not always end up with a BSD name, typically requiring replugging. */
                         char szBSDName[RT_SIZEOFMEMB(DARWINETHERNIC, szBSDName)];
-                        if (RT_UNLIKELY(darwinDictGetString(IfPropsRef, CFSTR("BSD Name"), szBSDName, sizeof(szBSDName))))
+                        if (RT_UNLIKELY(!darwinDictGetString(IfPropsRef, CFSTR("BSD Name"), szBSDName, sizeof(szBSDName))))
                         {
                             LogRelMax(32, ("DarwinGetEthernetControllers: Warning! Failed to get 'BSD Name'; provider class %s\n", szTmp));