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Message-ID: <36853ff4-70f0-a28b-7114-2423d7c11fad@linux.ibm.com>
Date:   Thu, 11 Mar 2021 13:48:26 +0530
From:   kajoljain <kjain@...ux.ibm.com>
To:     Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>,
        peterz@...radead.org
Cc:     mingo@...hat.com, acme@...nel.org, mark.rutland@....com,
        alexander.shishkin@...ux.intel.com, jolsa@...hat.com,
        namhyung@...nel.org, ast@...nel.org, daniel@...earbox.net,
        andrii@...nel.org, kafai@...com, songliubraving@...com, yhs@...com,
        john.fastabend@...il.com, kpsingh@...nel.org,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        bpf@...r.kernel.org
Subject: Re: [PATCH] perf tools: Remove redundant code



On 3/10/21 8:48 AM, Jiapeng Chong wrote:
> Fix the following coccicheck warnings:
> 
> ./tools/perf/util/evlist.c:1315:5-8: Unneeded variable: "err". Return "-
> ENOMEM" on line 1340.
> 
> Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
> Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
> ---
>  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 882cd1f..6c2a271 100644
> --- a/tools/perf/util/evlist.c
> +++ b/tools/perf/util/evlist.c
> @@ -1313,7 +1313,6 @@ 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
> @@ -1338,7 +1337,7 @@ static int evlist__create_syswide_maps(struct evlist *evlist)
>  out_put:
>  	perf_cpu_map__put(cpus);
>  out:
> -	return err;
> +	return -ENOMEM;
>  }

Seems fine to me.

Reviewed-By: Kajol Jain<kjain@...ux.ibm.com>
Thanks,
Kajol Jain
>  
>  int evlist__open(struct evlist *evlist)
> 

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