diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index aab314482c60..ef1991b24489 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -499,6 +499,10 @@ static int init_vq(struct virtio_blk *vblk) &num_vqs); if (err) num_vqs = 1; + if (!err && !num_vqs) { + dev_err(&vdev->dev, "MQ advertisted but zero queues reported\n"); + return -EINVAL; + } num_vqs = min_t(unsigned int, nr_cpu_ids, num_vqs);