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vdpa: Check for existence of opts.vhostdev

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Since net_init_vhost_vdpa is trying to open it. Not specifying it in the
command line crash qemu.

Fixes: 7327813d17 ("vhost-vdpa: open device fd in net_init_vhost_vdpa()")
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Message-Id: <20211112193431.2379298-3-eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Eugenio Pérez 2021-11-12 20:34:31 +01:00 • committed by Michael S. Tsirkin
parent 0351152b6f
commit c829540401
1 changed files with 4 additions and 0 deletions
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4
net/vhost-vdpa.c
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@ -260,6 +260,10 @@ int net_init_vhost_vdpa(const Netdev *netdev, const char *name,
assert(netdev->type == NET_CLIENT_DRIVER_VHOST_VDPA); assert(netdev->type == NET_CLIENT_DRIVER_VHOST_VDPA);
opts = &netdev->u.vhost_vdpa; opts = &netdev->u.vhost_vdpa;
if (!opts->vhostdev) {
error_setg(errp, "vdpa character device not specified with vhostdev");
return -1;
}
vdpa_device_fd = qemu_open(opts->vhostdev, O_RDWR, errp); vdpa_device_fd = qemu_open(opts->vhostdev, O_RDWR, errp);
if (vdpa_device_fd == -1) { if (vdpa_device_fd == -1) {