MFCINST_FINISHED
ctx->state = MFCINST_FINISHED;
case MFCINST_FINISHED:
ctx->state = MFCINST_FINISHED;
ctx->state == MFCINST_FINISHED)
if (ctx->state == MFCINST_FINISHED &&
ctx->state != MFCINST_FINISHED) {
if (ret == 0 && ctx->state == MFCINST_FINISHED
ctx->state = MFCINST_FINISHED;