qxl: init_pipe_signaling: exit on failure

If pipe creation fails, exit, don't log and continue. Fix indentation at
the same time.
Signed-off-by: NAlon Levy <alevy@redhat.com>
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

hw/qxl.c

@@ -1453,8 +1453,9 @@ static void qxl_send_events(PCIQXLDevice *d, uint32_t events)
 static void init_pipe_signaling(PCIQXLDevice *d)
 {
     if (pipe(d->pipe) < 0) {
-       dprint(d, 1, "%s: pipe creation failed\n", __FUNCTION__);
-       return;
+        fprintf(stderr, "%s:%s: qxl pipe creation failed\n",
+                __FILE__, __func__);
+        exit(1);
     }
     fcntl(d->pipe[0], F_SETFL, O_NONBLOCK);
     fcntl(d->pipe[1], F_SETFL, O_NONBLOCK);