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vhost: fix error handling in destroy

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Fix following coverity defect:

    291     void
    292     vhost_destroy_device(struct vhost_device_ctx ctx)
    293     {
    294             struct virtio_net *dev = get_device(ctx);
    295
    >>>     CID 124565:  Null pointer dereferences  (NULL_RETURNS)
    >>>     Dereferencing a null pointer "dev".

Fixes: 45ca9c6f7bc6 ("vhost: get rid of linked list for devices")

Reported-by: John McNamara <john.mcnamara@intel.com>
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
This commit is contained in:
Yuanhan Liu 2016-04-05 14:00:43 +08:00 committed by Thomas Monjalon
parent 2329a101f4
commit 71dc571efd
1 changed files with 3 additions and 0 deletions
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3
lib/librte_vhost/virtio-net.c
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@ -293,6 +293,9 @@ vhost_destroy_device(struct vhost_device_ctx ctx)
{
struct virtio_net *dev = get_device(ctx);
if (dev == NULL)
return;
if (dev->flags & VIRTIO_DEV_RUNNING)
notify_ops->destroy_device(dev);