3 files changed, 5 insertions, 5 deletions
diff --git a/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qglxintegration.cpp b/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qglxintegration.cpp
index 37f01d4eed..e1fb63fbc4 100644
--- a/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qglxintegration.cpp
+++ b/src/plugins/platforms/xcb/gl_integrations/xcb_glx/qglxintegration.cpp
@@ -99,7 +99,7 @@ static Window createDummyWindow(Display *dpy, XVisualInfo *visualInfo, int scree
 static Window createDummyWindow(Display *dpy, GLXFBConfig config, int screenNumber, Window rootWin)
 {
     XVisualInfo *visualInfo = glXGetVisualFromFBConfig(dpy, config);
-    if (!visualInfo)
+    if (Q_UNLIKELY(!visualInfo))
         qFatal("Could not initialize GLX");
     Window window = createDummyWindow(dpy, visualInfo, screenNumber, rootWin);
     XFree(visualInfo);
@@ -301,7 +301,7 @@ void QGLXContext::init(QXcbScreen *screen, QPlatformOpenGLContext *share)
 
         // Note that m_format gets updated with the used surface format
         visualInfo = qglx_findVisualInfo(m_display, screen->screenNumber(), &m_format);
-        if (!visualInfo)
+        if (Q_UNLIKELY(!visualInfo))
             qFatal("Could not initialize GLX");
         m_context = glXCreateContext(m_display, visualInfo, m_shareContext, true);
         if (!m_context && m_shareContext) {
diff --git a/src/plugins/platforms/xcb/qxcbconnection.cpp b/src/plugins/platforms/xcb/qxcbconnection.cpp
index 50d49ca798..ff39b24e93 100644
--- a/src/plugins/platforms/xcb/qxcbconnection.cpp
+++ b/src/plugins/platforms/xcb/qxcbconnection.cpp
@@ -521,7 +521,7 @@ QXcbConnection::QXcbConnection(QXcbNativeInterface *nativeInterface, bool canGra
     m_connection = xcb_connect(m_displayName.constData(), &m_primaryScreenNumber);
 #endif //XCB_USE_XLIB
 
-    if (!m_connection || xcb_connection_has_error(m_connection))
+    if (Q_UNLIKELY(!m_connection || xcb_connection_has_error(m_connection)))
         qFatal("QXcbConnection: Could not connect to display %s", m_displayName.constData());
 
 
@@ -553,7 +553,7 @@ QXcbConnection::QXcbConnection(QXcbNativeInterface *nativeInterface, bool canGra
     initializeXFixes();
     initializeScreens();
 
-    if (m_screens.isEmpty())
+    if (Q_UNLIKELY(m_screens.isEmpty()))
         qFatal("QXcbConnection: no screens available");
 
     initializeXRender();
diff --git a/src/plugins/platforms/xcb/qxcbwindow.cpp b/src/plugins/platforms/xcb/qxcbwindow.cpp
index 4bd4639833..3e01a90402 100644
--- a/src/plugins/platforms/xcb/qxcbwindow.cpp
+++ b/src/plugins/platforms/xcb/qxcbwindow.cpp
@@ -395,7 +395,7 @@ void QXcbWindow::create()
         if (!visualInfo)
             visualInfo = static_cast<XVisualInfo *>(createVisual());
 
-        if (!visualInfo && window()->surfaceType() == QSurface::OpenGLSurface)
+        if (Q_UNLIKELY(!visualInfo && window()->surfaceType() == QSurface::OpenGLSurface))
             qFatal("Could not initialize OpenGL");
 
         if (!visualInfo && window()->surfaceType() == QSurface::RasterGLSurface) {