linux-kernel - Re: [PATCH v2] perf bench: Fix memory leaks.

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Message-ID: <YZUe4C7laP5BkMmu@kernel.org>
Date:   Wed, 17 Nov 2021 12:25:20 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Sohaib Mohamed <sohaib.amhmd@...il.com>
Cc:     irogers@...gle.com, Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Pierre Gondois <Pierre.Gondois@....com>,
        Rusty Russell <rusty@...tcorp.com.au>,
        Hitoshi Mitake <mitake@....info.waseda.ac.jp>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] perf bench: Fix memory leaks.

Em Wed, Nov 10, 2021 at 04:20:11AM +0200, Sohaib Mohamed escreveu:
> ASan reports memory leaks while running:
> $ perf bench sched all
> 
> Fixes: e27454cc6352 ("perf bench: Add sched-messaging.c: Benchmark for
> scheduler and IPC mechanisms based on hackbench")

Thanks, applied.

- Arnaldo

 
> Signed-off-by: Sohaib Mohamed <sohaib.amhmd@...il.com>
> Acked-by: Ian Rogers <irogers@...gle.com>
> ---
>  tools/perf/bench/sched-messaging.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/tools/perf/bench/sched-messaging.c b/tools/perf/bench/sched-messaging.c
> index 488f6e6ba1a5..fa0ff4ce2b74 100644
> --- a/tools/perf/bench/sched-messaging.c
> +++ b/tools/perf/bench/sched-messaging.c
> @@ -223,6 +223,8 @@ static unsigned int group(pthread_t *pth,
>  		snd_ctx->out_fds[i] = fds[1];
>  		if (!thread_mode)
>  			close(fds[0]);
> +
> +		free(ctx);
>  	}
> 
>  	/* Now we have all the fds, fork the senders */
> @@ -239,6 +241,8 @@ static unsigned int group(pthread_t *pth,
>  		for (i = 0; i < num_fds; i++)
>  			close(snd_ctx->out_fds[i]);
> 
> +	free(snd_ctx);
> +
>  	/* Return number of children to reap */
>  	return num_fds * 2;
>  }
> --
> 2.25.1

-- 

- Arnaldo