diff options
| -rw-r--r-- | drivers/char/hw_random/virtio-rng.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/char/hw_random/virtio-rng.c b/drivers/char/hw_random/virtio-rng.c index d0e563e4fc39..86e83f883139 100644 --- a/drivers/char/hw_random/virtio-rng.c +++ b/drivers/char/hw_random/virtio-rng.c @@ -37,9 +37,9 @@ static void random_recv_done(struct virtqueue *vq) { int len; - /* We never get spurious callbacks. */ + /* We can get spurious callbacks, e.g. shared IRQs + virtio_pci. */ if (!vq->vq_ops->get_buf(vq, &len)) - BUG(); + return; data_left = len / sizeof(random_data[0]); complete(&have_data); |