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hw: virtio-pmem: detach the element fromt the virtqueue when error occurs

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If error occurs while processing the virtio request we should call
'virtqueue_detach_element' to detach the element from the virtqueue
before free the elem.

Signed-off-by: Li Qiang <liq3ea@163.com>
Message-Id: <20200813165125.59928-1-liq3ea@163.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Fixes: 5f503cd9f3 ("virtio-pmem: add virtio device")
Reviewed-by: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
This commit is contained in:
Li Qiang 2020-08-13 09:51:25 -07:00 committed by Michael S. Tsirkin
parent 0ed93f4c05
commit 2bc9e0da57
1 changed files with 1 additions and 0 deletions
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hw/virtio/virtio-pmem.c
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@ -77,6 +77,7 @@ static void virtio_pmem_flush(VirtIODevice *vdev, VirtQueue *vq)
if (req_data->elem.out_num < 1 || req_data->elem.in_num < 1) {
virtio_error(vdev, "virtio-pmem request not proper");
virtqueue_detach_element(vq, (VirtQueueElement *)req_data, 0);
g_free(req_data);
return;
}