ring = vring_alloc_queue(vdev, ring_size_in_bytes,
                                 &ring_dma_addr,
-                                GFP_KERNEL|__GFP_NOWARN|__GFP_ZERO);
+                                GFP_KERNEL | __GFP_NOWARN | __GFP_ZERO);
        if (!ring)
                goto err;
 
 
        driver = vring_alloc_queue(vdev, event_size_in_bytes,
                                   &driver_event_dma_addr,
-                                  GFP_KERNEL|__GFP_NOWARN|__GFP_ZERO);
+                                  GFP_KERNEL | __GFP_NOWARN | __GFP_ZERO);
        if (!driver)
                goto err;
 
 
        device = vring_alloc_queue(vdev, event_size_in_bytes,
                                   &device_event_dma_addr,
-                                  GFP_KERNEL|__GFP_NOWARN|__GFP_ZERO);
+                                  GFP_KERNEL | __GFP_NOWARN | __GFP_ZERO);
        if (!device)
                goto err;