linux-kernel - Re: [PATCH -next] nvme-rdma: fix the return value of nvme_rdma_reinit

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Date:	Tue, 12 Jul 2016 07:18:43 -0700
From:	J Freyensee <james_p_freyensee@...ux.intel.com>
To:	weiyj_lk@....com, Keith Busch <keith.busch@...el.com>,
	Jens Axboe <axboe@...com>, Christoph Hellwig <hch@....de>
Cc:	Wei Yongjun <yongjun_wei@...ndmicro.com.cn>,
	linux-kernel@...r.kernel.org, linux-nvme@...ts.infradead.org
Subject: Re: [PATCH -next] nvme-rdma: fix the return value of
 nvme_rdma_reinit_request()

On Tue, 2016-07-12 at 11:06 +0000, weiyj_lk@....com wrote:
> From: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
> 
> PTR_ERR should be applied before its argument is reassigned,
> otherwise the
> return value will be set to 0, not error code.

Another good catch.

Reviewed-by: Jay Freyensee <james_p_freyensee@...ux.intel.com>

> 
> Signed-off-by: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>

>  	if (IS_ERR(req->mr)) {
> -		req->mr = NULL;
>  		ret = PTR_ERR(req->mr);
> +		req->mr = NULL;
>  	}