linux-kernel - Re: [PATCH 3/9] perf util: Get rid of write_or

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Message-ID: <1363704594.22553.56.camel@laptop>
Date:	Tue, 19 Mar 2013 15:49:54 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Namhyung Kim <namhyung@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung.kim@....com>,
	LKML <linux-kernel@...r.kernel.org>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: Re: [PATCH 3/9] perf util: Get rid of write_or_die() from
 trace-event-info.c

On Tue, 2013-03-19 at 10:35 -0400, Steven Rostedt wrote:
> What about:
>         int err = 0;
> 
>         err += tracing_data_header();
>         err += read_header_files();
>         [...]
> 
>         if (err < 0) {
>                 free(tdata);
>                 tdata = NULL;
>         }
> 
> Also, is the only clean up needed be freeing tdata?

I always use err |= foo() and if (err) but I suppose it doesn't matter
the original error codes are lost both ways which doesn't seem to be a
problem here.

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