linux-kernel - Re: [PATCH] perf tools: Free strlist in strlist_

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Date:	Fri, 06 Sep 2013 08:05:17 -0600
From:	David Ahern <dsahern@...il.com>
To:	Namhyung Kim <namhyung@...nel.org>
CC:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung.kim@....com>,
	LKML <linux-kernel@...r.kernel.org>, Jiri Olsa <jolsa@...hat.com>
Subject: Re: [PATCH] perf tools: Free strlist in strlist__delete()

On 9/5/13 11:35 PM, Namhyung Kim wrote:
> From: Namhyung Kim <namhyung.kim@....com>
>
> It seems strlist never deleted after allocated.  AFAICS every strlist
> is allocated dynamically, just free it in the _delete() function.
>
> Signed-off-by: Namhyung Kim <namhyung@...nel.org>
> ---
>   tools/perf/util/strlist.c | 4 +++-
>   1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/tools/perf/util/strlist.c b/tools/perf/util/strlist.c
> index eabdce0a2daa..11593d899eb2 100644
> --- a/tools/perf/util/strlist.c
> +++ b/tools/perf/util/strlist.c
> @@ -155,8 +155,10 @@ out_error:
>
>   void strlist__delete(struct strlist *slist)
>   {
> -	if (slist != NULL)
> +	if (slist != NULL) {
>   		rblist__delete(&slist->rblist);
> +		free(slist);
> +	}
>   }
>
>   struct str_node *strlist__entry(const struct strlist *slist, unsigned int idx)
>

Yes, strlist__delete is the counterpart to strlist__new; the new 
function allocates the memory, so the delete should free it.

Acked-by: David Ahern <dsahern@...il.com>
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