diff options
| -rw-r--r-- | contrib/libvhost-user/libvhost-user.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/contrib/libvhost-user/libvhost-user.c b/contrib/libvhost-user/libvhost-user.c index beeed0c43f..54e643d871 100644 --- a/contrib/libvhost-user/libvhost-user.c +++ b/contrib/libvhost-user/libvhost-user.c @@ -323,13 +323,15 @@ vu_message_write(VuDev *dev, int conn_fd, VhostUserMsg *vmsg) rc = sendmsg(conn_fd, &msg, 0); } while (rc < 0 && (errno == EINTR || errno == EAGAIN)); - do { - if (vmsg->data) { - rc = write(conn_fd, vmsg->data, vmsg->size); - } else { - rc = write(conn_fd, p + VHOST_USER_HDR_SIZE, vmsg->size); - } - } while (rc < 0 && (errno == EINTR || errno == EAGAIN)); + if (vmsg->size) { + do { + if (vmsg->data) { + rc = write(conn_fd, vmsg->data, vmsg->size); + } else { + rc = write(conn_fd, p + VHOST_USER_HDR_SIZE, vmsg->size); + } + } while (rc < 0 && (errno == EINTR || errno == EAGAIN)); + } if (rc <= 0) { vu_panic(dev, "Error while writing: %s", strerror(errno)); |