diff options
| -rw-r--r-- | src/plugins/platforms/xcb/qxcbconnection.cpp | 8 | ||||
| -rw-r--r-- | src/plugins/platforms/xcb/qxcbconnection_basic.cpp | 8 |
2 files changed, 14 insertions, 2 deletions
diff --git a/src/plugins/platforms/xcb/qxcbconnection.cpp b/src/plugins/platforms/xcb/qxcbconnection.cpp index 04718f09db..ac818b984b 100644 --- a/src/plugins/platforms/xcb/qxcbconnection.cpp +++ b/src/plugins/platforms/xcb/qxcbconnection.cpp @@ -870,7 +870,13 @@ xcb_timestamp_t QXcbConnection::getTimestamp() xcb_window_t QXcbConnection::getSelectionOwner(xcb_atom_t atom) const { - return Q_XCB_REPLY(xcb_get_selection_owner, xcb_connection(), atom)->owner; + auto reply = Q_XCB_REPLY(xcb_get_selection_owner, xcb_connection(), atom); + if (!reply) { + qCDebug(lcQpaXcb) << "failed to query selection owner"; + return XCB_NONE; + } + + return reply->owner; } xcb_window_t QXcbConnection::getQtSelectionOwner() diff --git a/src/plugins/platforms/xcb/qxcbconnection_basic.cpp b/src/plugins/platforms/xcb/qxcbconnection_basic.cpp index 6482395f86..c4f24ca0ee 100644 --- a/src/plugins/platforms/xcb/qxcbconnection_basic.cpp +++ b/src/plugins/platforms/xcb/qxcbconnection_basic.cpp @@ -176,7 +176,13 @@ 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) |