linux-kernel - Re: [PATCH][next] block/mq-deadline: remove redundant assignment of variable ret

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Date:   Tue, 22 Jun 2021 15:15:45 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Bart Van Assche <bvanassche@....org>
Cc:     Colin King <colin.king@...onical.com>, linux-block@...r.kernel.org,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] block/mq-deadline: remove redundant assignment of variable ret

On Jun 22, 2021, at 3:14 PM, Bart Van Assche <bvanassche@....org> wrote:
> 
> On 6/22/21 9:17 AM, Colin King wrote:
>> From: Colin Ian King <colin.king@...onical.com>
>> 
>> Variable ret is being assigned a value at the end of the function
>> and the value is never read. The assignment is redundant and can
>> be removed.
>> 
>> Addresses-Coverity: ("Unused value")
>> Signed-off-by: Colin Ian King <colin.king@...onical.com>
>> ---
>> block/mq-deadline-main.c | 1 -
>> 1 file changed, 1 deletion(-)
>> 
>> diff --git a/block/mq-deadline-main.c b/block/mq-deadline-main.c
>> index 4815e536091f..e3091d922ba2 100644
>> --- a/block/mq-deadline-main.c
>> +++ b/block/mq-deadline-main.c
>> @@ -639,7 +639,6 @@ static int dd_init_sched(struct request_queue *q, struct elevator_type *e)
>>    if (ret)
>>        goto free_stats;
>> 
>> -    ret = 0;
>>    q->elevator = eq;
>>    return 0;
> 
> Reviewed-by: Bart Van Assche <bvanassche@....org>

Assuming this is fallout from the recent series, we should add a fixes tag to it. 

— 
Jens Axboe