linux-kernel - Re: [PATCH] nvme-fabrics: remove unneeded variable

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Date:   Sun, 9 Jan 2022 14:53:20 +0200
From:   Sagi Grimberg <sagi@...mberg.me>
To:     cgel.zte@...il.com, kbusch@...nel.org
Cc:     axboe@...com, hch@....de, linux-nvme@...ts.infradead.org,
        linux-kernel@...r.kernel.org,
        Changcheng Deng <deng.changcheng@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: Re: [PATCH] nvme-fabrics: remove unneeded variable


> From: Changcheng Deng <deng.changcheng@....com.cn>
> 
> Remove unneeded variable used to store return value.

I actually think that ret is missing an assignment in the error
case (e.g ret = -ENODEV)...

> 
> Reported-by: Zeal Robot <zealci@....com.cn>
> Signed-off-by: Changcheng Deng <deng.changcheng@....com.cn>
> ---
>   drivers/nvme/host/fabrics.c | 3 +--
>   1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/nvme/host/fabrics.c b/drivers/nvme/host/fabrics.c
> index 7ae041e2b3fb..f79a66d4e22c 100644
> --- a/drivers/nvme/host/fabrics.c
> +++ b/drivers/nvme/host/fabrics.c
> @@ -1092,7 +1092,6 @@ static void __nvmf_concat_opt_tokens(struct seq_file *seq_file)
>   static int nvmf_dev_show(struct seq_file *seq_file, void *private)
>   {
>   	struct nvme_ctrl *ctrl;
> -	int ret = 0;
>   
>   	mutex_lock(&nvmf_dev_mutex);
>   	ctrl = seq_file->private;
> @@ -1106,7 +1105,7 @@ static int nvmf_dev_show(struct seq_file *seq_file, void *private)
>   
>   out_unlock:
>   	mutex_unlock(&nvmf_dev_mutex);
> -	return ret;
> +	return 0;
>   }
>   
>   static int nvmf_dev_open(struct inode *inode, struct file *file)
>