Limit cdUp to root

Task-number: QTCREATORBUG-10860

Change-Id: I22550b4415e07cac0d78f36595dc7ee781a837c0
Reviewed-by: Eike Ziller <[email protected]>

1 files changed, 3 insertions, 1 deletions

diff --git a/src/plugins/cvs/cvsplugin.cpp b/src/plugins/cvs/cvsplugin.cpp
index 9d4a8055f74..15826ba473c 100644
--- a/src/plugins/cvs/cvsplugin.cpp
+++ b/src/plugins/cvs/cvsplugin.cpp
@@ -1349,7 +1349,9 @@ bool CvsPlugin::managesDirectory(const QString &directory, QString *topLevel /*
          * not have a  "CVS" directory. The starting directory must be a managed
          * one. Go up and try to find the first unmanaged parent dir. */
         QDir lastDirectory = dir;
-        for (QDir parentDir = lastDirectory; parentDir.cdUp() ; lastDirectory = parentDir) {
+        for (QDir parentDir = lastDirectory;
+             !parentDir.isRoot() && parentDir.cdUp();
+             lastDirectory = parentDir) {
             if (!checkCVSDirectory(parentDir)) {
                 *topLevel = lastDirectory.absolutePath();
                 break;