4 files changed, 11 insertions, 3 deletions
diff --git a/src/corelib/io/qipaddress.cpp b/src/corelib/io/qipaddress.cpp
index 13636ebb8b..02b12f635a 100644
--- a/src/corelib/io/qipaddress.cpp
+++ b/src/corelib/io/qipaddress.cpp
@@ -117,6 +117,9 @@ static bool parseIp4Internal(IPv4Address &address, const char *ptr, bool acceptL
             return false;
         else if (dotCount == 3 || *endptr == '\0')
             return true;
+        if (*endptr != '.')
+            return false;
+
         ++dotCount;
         ptr = endptr + 1;
     }
diff --git a/src/corelib/io/qlockfile_p.h b/src/corelib/io/qlockfile_p.h
index b41b9b4604..d7f2a1d52d 100644
--- a/src/corelib/io/qlockfile_p.h
+++ b/src/corelib/io/qlockfile_p.h
@@ -81,7 +81,8 @@ public:
     // Returns \c true if the lock belongs to dead PID, or is old.
     // The attempt to delete it will tell us if it was really stale or not, though.
     bool isApparentlyStale() const;
-    static QString processNameByPid(qint64 pid);
+    // used in dbusmenu
+    Q_CORE_EXPORT static QString processNameByPid(qint64 pid);
 
 #ifdef Q_OS_UNIX
     static int checkFcntlWorksAfterFlock(const QString &fn);
diff --git a/src/corelib/io/qlockfile_unix.cpp b/src/corelib/io/qlockfile_unix.cpp
index 3455305858..7255414bdc 100644
--- a/src/corelib/io/qlockfile_unix.cpp
+++ b/src/corelib/io/qlockfile_unix.cpp
@@ -148,6 +148,8 @@ static QBasicMutex fcntlLock;
 static bool fcntlWorksAfterFlock(const QString &fn)
 {
     QMutexLocker lock(&fcntlLock);
+    if (fcntlOK.isDestroyed())
+        return QLockFilePrivate::checkFcntlWorksAfterFlock(fn);
     bool *worksPtr = fcntlOK->object(fn);
     if (!worksPtr) {
         worksPtr = new bool(QLockFilePrivate::checkFcntlWorksAfterFlock(fn));
diff --git a/src/corelib/io/qresource.cpp b/src/corelib/io/qresource.cpp
index ad24b43568..1ead114235 100644
--- a/src/corelib/io/qresource.cpp
+++ b/src/corelib/io/qresource.cpp
@@ -1259,8 +1259,10 @@ bool QResourceFileEngine::open(QIODevice::OpenMode flags)
     }
     if(flags & QIODevice::WriteOnly)
         return false;
-    if(!d->resource.isValid())
-       return false;
+    if (!d->resource.isValid()) {
+        d->errorString = qt_error_string(ENOENT);
+        return false;
+    }
     return true;
 }