d/numam-dpdk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

vhost: refine new device function

Browse Source 
Make sure find avalid device id before allocating
virtio_net, if not, return directly. It may avoid
allocating and freeing virtio_net when there is
not valid device id.

Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
This commit is contained in:
Tonghao Zhang 2018-06-08 02:18:04 -07:00 committed by Maxime Coquelin
parent 0e677a3534
commit 76b1e4cec7
1 changed files with 8 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
lib/librte_vhost/vhost.c
View File

@ -268,21 +268,21 @@ vhost_new_device(void)
struct virtio_net *dev;
int i;
dev = rte_zmalloc(NULL, sizeof(struct virtio_net), 0);
if (dev == NULL) {
RTE_LOG(ERR, VHOST_CONFIG,
"Failed to allocate memory for new dev.\n");
return -1;
}
for (i = 0; i < MAX_VHOST_DEVICE; i++) {
if (vhost_devices[i] == NULL)
break;
}
if (i == MAX_VHOST_DEVICE) {
RTE_LOG(ERR, VHOST_CONFIG,
"Failed to find a free slot for new device.\n");
rte_free(dev);
return -1;
}
dev = rte_zmalloc(NULL, sizeof(struct virtio_net), 0);
if (dev == NULL) {
RTE_LOG(ERR, VHOST_CONFIG,
"Failed to allocate memory for new dev.\n");
return -1;
}