Avoid NULL dereference if DBusPyServer_NewConsumingDBusServer fails

Detected by gcc 7.

Signed-off-by: Simon McVittie <smcv@collabora.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/_dbus_bindings/server.c b/_dbus_bindings/server.c
index 07652c4..3ce67c2 100644
--- a/_dbus_bindings/server.c
+++ b/_dbus_bindings/server.c
@@ -411,6 +411,11 @@ Server_tp_new(PyTypeObject *cls, PyObject *args, PyObject *kwargs)
 
     self = DBusPyServer_NewConsumingDBusServer(cls, server, conn_class,
             mainloop, auth_mechanisms);
+
+    if (!self) {
+        return NULL;
+    }
+
     ((Server *)self)->weaklist = NULL;
     TRACE(self);