diff options
Diffstat (limited to 'drivers/block/virtio_blk.c')
| -rw-r--r-- | drivers/block/virtio_blk.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index a33fe0743672..dbcf2a7e4a00 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -571,6 +571,10 @@ 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, min_not_zero(num_request_queues, nr_cpu_ids), |