linux-kernel - Re: [PATCHSET 0/7] perf tools: Check error during collapsing hist entries

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Message-ID: <20160123170121.GB4675@krava.local>
Date:	Sat, 23 Jan 2016 18:01:21 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Jiri Olsa <jolsa@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>
Subject: Re: [PATCHSET 0/7] perf tools: Check error during collapsing hist
 entries

On Fri, Jan 22, 2016 at 10:41:33PM +0900, Namhyung Kim wrote:
> Hi,
> 
> This patchset checks error case during the process of collapsing hist
> entries.  It's a preparation of upcoming hierarchy patchset which adds
> more work in the collapsing path.  If there's an error during this
> stage, it'll stop processing and show warning to user.
> 
> Thanks,
> Namhyung
> 
> 
> Namhyung Kim (7):
>   perf callchain: Check return value of add_child()
>   perf callchain: Check return value of fill_node()
>   perf callchain: Add enum match_result for match_chain()
>   perf callchain: Check return value of split_add_child()
>   perf callchain: Check return value of append_chain_children()
>   perf hists: Return error from hists__collapse_resort()
>   perf report: Check error during report__collapse_hists()

I saw 2 other functions allocating memory and not checked:
  callchain_cursor_append
  callchain_node__make_parent_list 

thanks,
jirka