linux-kernel - Re: [PATCH v2 1/5] tools lib traceevent: Replace malloc_or_die to plain calloc in alloc

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Message-ID: <1340026630.25903.84.camel@gandalf.stny.rr.com>
Date:	Mon, 18 Jun 2012 09:37:10 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Namhyung Kim <namhyung.kim@....com>
Subject: Re: [PATCH v2 1/5] tools lib traceevent: Replace malloc_or_die to
 plain calloc in alloc_event()

On Mon, 2012-06-18 at 11:50 +0900, Namhyung Kim wrote:
> From: Namhyung Kim <namhyung.kim@....com>
> 
> Because the only caller of the alloc_event()
> (pevent_parse_event) checks return value properly
> and all it does after allocation is initializing,
> it can be changed to use plain calloc.
> 
> Thanks to Steven for suggesting this simpler way.
> 
> Cc: Frederic Weisbecker <fweisbec@...il.com>

Acked-by: Steven Rostedt <rostedt@...dmis.org>

-- Steve


> Link: http://lkml.kernel.org/n/tip-wagq5qbdy1mytvjkrjbqt095@git.kernel.org
> Signed-off-by: Namhyung Kim <namhyung@...nel.org>
> ---
>  tools/lib/traceevent/event-parse.c |    7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)
> 
> diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
> index c471075e4974..4f667fdc5fae 100644
> --- a/tools/lib/traceevent/event-parse.c
> +++ b/tools/lib/traceevent/event-parse.c
> @@ -619,12 +619,7 @@ void pevent_print_printk(struct pevent *pevent)
>  
>  static struct event_format *alloc_event(void)
>  {
> -	struct event_format *event;
> -
> -	event = malloc_or_die(sizeof(*event));
> -	memset(event, 0, sizeof(*event));
> -
> -	return event;
> +	return calloc(1, sizeof(struct event_format));
>  }
>  
>  static void add_event(struct pevent *pevent, struct event_format *event)


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