linux-kernel - Re: [PATCH 6/9] perf util: Get rid of malloc_or

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Message-ID: <1363704602.5938.26.camel@gandalf.local.home>
Date:	Tue, 19 Mar 2013 10:50:02 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
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>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: Re: [PATCH 6/9] perf util: Get rid of malloc_or_die() in
 trace-event-read.c

On Tue, 2013-03-19 at 17:53 +0900, Namhyung Kim wrote:
>  	free(version);
> @@ -331,11 +354,12 @@ ssize_t trace_report(int fd, struct pevent **ppevent, bool __repipe)
>  
>  	page_size = read4(pevent);
>  
> -	read_header_files(pevent);
> -	read_ftrace_files(pevent);
> -	read_event_files(pevent);
> -	read_proc_kallsyms(pevent);
> -	read_ftrace_printk(pevent);
> +	if (read_header_files(pevent) ||
> +	    read_ftrace_files(pevent) ||
> +	    read_event_files(pevent) ||
> +	    read_proc_kallsyms(pevent) ||
> +	    read_ftrace_printk(pevent))
> +		goto out;

I think I like the err += func() and check for err < 0, better.

-- Steve

>  
>  	size = calc_data_size - 1;
>  	calc_data_size = 0;


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