vhost: fix initialization of async temporary header

This patch fixes coverity issue in async enqueue function by adding
initialization step before using temporary virtio header.

Coverity issue: 366123
Fixes: cd6760da10 ("vhost: introduce async enqueue for split ring")
Cc: stable@dpdk.org

Signed-off-by: Marvin Liu <yong.liu@intel.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
This commit is contained in:
Marvin Liu 2021-04-07 11:25:16 +08:00 committed by Chenbo Xia
parent 5b784a2d80
commit 98da5545be

View File

@ -986,9 +986,10 @@ async_mbuf_to_desc(struct virtio_net *dev, struct vhost_virtqueue *vq,
hdr_mbuf = m;
hdr_addr = buf_addr;
if (unlikely(buf_len < dev->vhost_hlen))
if (unlikely(buf_len < dev->vhost_hlen)) {
memset(&tmp_hdr, 0, sizeof(struct virtio_net_hdr_mrg_rxbuf));
hdr = &tmp_hdr;
else
} else
hdr = (struct virtio_net_hdr_mrg_rxbuf *)(uintptr_t)hdr_addr;
VHOST_LOG_DATA(DEBUG, "(%d) RX: num merge buffers %d\n",