linux-kernel - Re: [PATCH] perf test x86: Fit memory leak in sample

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Message-ID: <20140419221913.GA6234@krava.redhat.com>
Date:	Sun, 20 Apr 2014 00:19:13 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Masanari Iida <standby24x7@...il.com>
Cc:	a.p.zijlstra@...llo.nl, paulus@...ba.org, mingo@...hat.com,
	acme@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf test x86: Fit memory leak in sample_ustack()

On Sun, Apr 20, 2014 at 12:16:41AM +0900, Masanari Iida wrote:
> buf is not freed, when kernel failed to get stack map
> and return.
> 
> Signed-off-by: Masanari Iida <standby24x7@...il.com>

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

thanks,
jirka

> ---
>  tools/perf/arch/x86/tests/dwarf-unwind.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/tools/perf/arch/x86/tests/dwarf-unwind.c b/tools/perf/arch/x86/tests/dwarf-unwind.c
> index b602ad9..68f2711 100644
> --- a/tools/perf/arch/x86/tests/dwarf-unwind.c
> +++ b/tools/perf/arch/x86/tests/dwarf-unwind.c
> @@ -26,6 +26,7 @@ static int sample_ustack(struct perf_sample *sample,
>  	map = map_groups__find(&thread->mg, MAP__FUNCTION, (u64) sp);
>  	if (!map) {
>  		pr_debug("failed to get stack map\n");
> +		kfree(buf);
>  		return -1;
>  	}
>  
> -- 
> 1.9.2.468.g3f0c02a
> 
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