Merge remote-tracking branch 'origin/tqtc/lts-5.15.8' into tqtc/lts-5.15-opensourcev5.15.8-lts-lgpl

Change-Id: I569a2246c9e8d70430e8c5405b9f3df2218078ee

1 files changed, 7 insertions, 1 deletions

diff --git a/src/plugins/platforms/xcb/qxcbconnection_basic.cpp b/src/plugins/platforms/xcb/qxcbconnection_basic.cpp
index 18dee89adb..9dd608cdc0 100644
--- a/src/plugins/platforms/xcb/qxcbconnection_basic.cpp
+++ b/src/plugins/platforms/xcb/qxcbconnection_basic.cpp
@@ -179,7 +179,13 @@ xcb_atom_t QXcbBasicConnection::internAtom(const char *name)
     if (!name || *name == 0)
         return XCB_NONE;
 
-    return Q_XCB_REPLY(xcb_intern_atom, m_xcbConnection, false, strlen(name), name)->atom;
+    auto reply = Q_XCB_REPLY(xcb_intern_atom, m_xcbConnection, false, strlen(name), name);
+    if (!reply) {
+        qCDebug(lcQpaXcb) << "failed to query intern atom: " << name;
+        return XCB_NONE;
+    }
+
+    return reply->atom;
 }
 
 QByteArray QXcbBasicConnection::atomName(xcb_atom_t atom)