[v1] vhost: fix missing null dev pointer check
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Commit Message
From: Patrick Fu <patrick.fu@intel.com>
This patch adds the check of dev pointer in vhost async enqueue
completion poll. If a NULL dev pointer detected, the poll function
returns immediately.
Coverity issue: 360839
Fixes: cd6760da10 ("vhost: introduce async enqueue for split ring")
Signed-off-by: Patrick Fu <patrick.fu@intel.com>
---
lib/librte_vhost/virtio_net.c | 3 +++
1 file changed, 3 insertions(+)
@@ -1635,6 +1635,9 @@ uint16_t rte_vhost_poll_enqueue_completed(int vid, uint16_t queue_id,
uint16_t start_idx, pkts_idx, vq_size;
uint64_t *async_pending_info;
+ if (!dev)
+ return 0;
+
VHOST_LOG_DATA(DEBUG, "(%d) %s\n", dev->vid, __func__);
if (unlikely(!is_valid_virt_queue_idx(queue_id, 0, dev->nr_vring))) {
VHOST_LOG_DATA(ERR, "(%d) %s: invalid virtqueue idx %d.\n",