linux-kernel - Re: [PATCH] perf tools: Fix resources leak in perf_data__open

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Date:   Thu, 29 Dec 2022 13:27:39 +0200
From:   Adrian Hunter <adrian.hunter@...el.com>
To:     Miaoqian Lin <linmq006@...il.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Alexey Bayduraev <alexey.v.bayduraev@...ux.intel.com>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf tools: Fix resources leak in perf_data__open_dir

On 29/12/22 11:09, Miaoqian Lin wrote:
> In perf_data__open_dir(), opendir() opens the directory stream.
> Add missing closedir() to release it after use.
> 
> Fixes: eb6176709b23 ("perf data: Add perf_data__open_dir_data function")
> Signed-off-by: Miaoqian Lin <linmq006@...il.com>

Reviewed-by: Adrian Hunter <adrian.hunter@...el.com>

> ---
>  tools/perf/util/data.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c
> index a7f68c309545..fc16299c915f 100644
> --- a/tools/perf/util/data.c
> +++ b/tools/perf/util/data.c
> @@ -132,6 +132,7 @@ int perf_data__open_dir(struct perf_data *data)
>  		file->size = st.st_size;
>  	}
>  
> +	closedir(dir);
>  	if (!files)
>  		return -EINVAL;
>  
> @@ -140,6 +141,7 @@ int perf_data__open_dir(struct perf_data *data)
>  	return 0;
>  
>  out_err:
> +	closedir(dir);
>  	close_dir(files, nr);
>  	return ret;
>  }