MQ_NAMELEN
name = kmem_alloc(MQ_NAMELEN, KM_SLEEP);
error = copyinstr(SCARG(uap, name), name, MQ_NAMELEN - 1, NULL);
kmem_free(name, MQ_NAMELEN);
kmem_free(name, MQ_NAMELEN);
kmem_free(mq->mq_name, MQ_NAMELEN);
if (strncmp(mq->mq_name, name, MQ_NAMELEN) == 0) {
name = kmem_alloc(MQ_NAMELEN, KM_SLEEP);
error = copyinstr(u_name, name, MQ_NAMELEN - 1, NULL);
kmem_free(name, MQ_NAMELEN);
kmem_free(name, MQ_NAMELEN);
kmem_free(name, MQ_NAMELEN);