Fix segfault when using a krandr-based program with no display profiles installed

krandr/libkrandr.cc

@@ -433,6 +433,7 @@ TQStringList KRandrSimpleAPI::getDisplayConfigurationProfiles(TQString kde_confd
 	d.setSorting(TQDir::Name);
 
 	const TQFileInfoList *list = d.entryInfoList();
+	if (list) {
 		TQFileInfoListIterator it(*list);
 		TQFileInfo *fi;
 
@@ -442,6 +443,7 @@ TQStringList KRandrSimpleAPI::getDisplayConfigurationProfiles(TQString kde_confd
 			}
 			++it;
 		}
+	}
 
 	return ret;
 }