Fix crashes due to multiple calls to paddle_init
Fix crashes due to multiple calls to paddle_init

QiJune/Paddle,QiJune/Paddle,putcn/Paddle,QiJune/Paddle,reyoung/Paddle,putcn/Paddle,luotao1/Paddle,luotao1/Paddle,jacquesqiao/Paddle,pkuyym/Paddle,pkuyym/Paddle,tensor-tang/Paddle,PaddlePaddle/Paddle,jacquesqiao/Paddle,QiJune/Paddle,jacquesqiao/Paddle,Canpio/Paddle,pkuyym/Paddle,luotao1/Paddle,Canpio/Paddle,PaddlePaddle/Paddle,pkuyym/Paddle,jacquesqiao/Paddle,lcy-seso/Paddle,chengduoZH/Paddle,tensor-tang/Paddle,chengduoZH/Paddle,tensor-tang/Paddle,QiJune/Paddle,lcy-seso/Paddle,reyoung/Paddle,putcn/Paddle,putcn/Paddle,PaddlePaddle/Paddle,baidu/Paddle,chengduoZH/Paddle,tensor-tang/Paddle,PaddlePaddle/Paddle,baidu/Paddle,pkuyym/Paddle,reyoung/Paddle,luotao1/Paddle,PaddlePaddle/Paddle,reyoung/Paddle,putcn/Paddle,putcn/Paddle,QiJune/Paddle,PaddlePaddle/Paddle,tensor-tang/Paddle,jacquesqiao/Paddle,Canpio/Paddle,Canpio/Paddle,jacquesqiao/Paddle,baidu/Paddle,luotao1/Paddle,baidu/Paddle,lcy-seso/Paddle,chengduoZH/Paddle,lcy-seso/Paddle,chengduoZH/Paddle,luotao1/Paddle,lcy-seso/Paddle,Canpio/Paddle,PaddlePaddle/Paddle,baidu/Paddle,Canpio/Paddle,reyoung/Paddle,Canpio/Paddle,reyoung/Paddle,Canpio/Paddle,lcy-seso/Paddle,luotao1/Paddle,pkuyym/Paddle