linux-kernel - Re: [PATCH] perf tools: remove unneeded variable

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Date:   Sun, 28 Nov 2021 18:00:08 +0100
From:   Jiri Olsa <jolsa@...hat.com>
To:     cgel.zte@...il.com
Cc:     peterz@...radead.org, mingo@...hat.com, acme@...nel.org,
        mark.rutland@....com, alexander.shishkin@...ux.intel.com,
        namhyung@...nel.org, yao.jin@...ux.intel.com,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        ran jianping <ran.jianping@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: Re: [PATCH] perf tools: remove unneeded variable

On Mon, Nov 22, 2021 at 01:41:59AM +0000, cgel.zte@...il.com wrote:
> From: ran jianping <ran.jianping@....com.cn>
> 
> Fix the following coccicheck review:
> ./tools/perf/util/evlist.c:1303:5-8: Unneeded variable
> 
> Remove unneeded variable used to store return value.
> 
> Reported-by: Zeal Robot <zealci@....com.cn>
> Signed-off-by: ran jianping <ran.jianping@....com.cn>

Acked-by: Jiri Olsa <jolsa@...hat.com>

thanks,
jirka

> ---
>  tools/perf/util/evlist.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
> index 5f92319ce258..d64fe767f583 100644
> --- a/tools/perf/util/evlist.c
> +++ b/tools/perf/util/evlist.c
> @@ -1300,7 +1300,6 @@ static int evlist__create_syswide_maps(struct evlist *evlist)
>  {
>  	struct perf_cpu_map *cpus;
>  	struct perf_thread_map *threads;
> -	int err = -ENOMEM;
>  
>  	/*
>  	 * Try reading /sys/devices/system/cpu/online to get
> @@ -1325,7 +1324,7 @@ static int evlist__create_syswide_maps(struct evlist *evlist)
>  out_put:
>  	perf_cpu_map__put(cpus);
>  out:
> -	return err;
> +	return -ENOMEM;
>  }
>  
>  int evlist__open(struct evlist *evlist)
> -- 
> 2.25.1
>