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libvhost-user: quit when no more data received 

End processing of messages when VHOST_USER_NONE
is received.

Without this we run into a vubr_panic() call and get
"PANIC: Unhandled request: 0"

Signed-off-by: Jens Freimann <jfreiman@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Jens Freimann 2017-08-08 22:38:58 +02:00 committed by Michael S. Tsirkin
parent 0f8c289ad5
commit 2566378d6d
1 changed files with 3 additions and 1 deletions
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4
contrib/libvhost-user/libvhost-user.c
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@ -161,7 +161,7 @@ vu_message_read(VuDev *dev, int conn_fd, VhostUserMsg *vmsg)
rc = recvmsg(conn_fd, &msg, 0);
} while (rc < 0 && (errno == EINTR || errno == EAGAIN));
if (rc <= 0) {
if (rc < 0) {
vu_panic(dev, "Error while recvmsg: %s", strerror(errno));
return false;
}
@ -806,6 +806,8 @@ vu_process_message(VuDev *dev, VhostUserMsg *vmsg)
return vu_get_queue_num_exec(dev, vmsg);
case VHOST_USER_SET_VRING_ENABLE:
return vu_set_vring_enable_exec(dev, vmsg);
case VHOST_USER_NONE:
break;
default:
vmsg_close_fds(vmsg);
vu_panic(dev, "Unhandled request: %d", vmsg->request);