linux-kernel - Re: [PATCH 3/3] tracing/ftrace: fix a memory leak in stat tracing

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Date:	Tue, 6 Jan 2009 14:51:57 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, fweisbec@...il.com,
	roel.kluin@...il.com, pq@....fi, srostedt@...hat.com
Subject: Re: [PATCH 3/3] tracing/ftrace: fix a memory leak in stat tracing

On Tue, 06 Jan 2009 17:33:40 -0500
Steven Rostedt <rostedt@...dmis.org> wrote:

>  static int stat_seq_show(struct seq_file *s, void *v)
>  {
> -	struct trace_stat_list *l = list_entry(v, struct trace_stat_list, list);
> -	return current_tracer.stat_show(s, l->stat);
> +	struct trace_stat_list *entry =
> +		list_entry(v, struct trace_stat_list, list);
> +
> +	return current_tracer.stat_show(s, entry->stat);
>  }

Rather than jumping through weird 80-column hoops, one can just do:

	struct trace_stat_list *entry;

	...

	entry = list_entry(v, struct trace_stat_list, list);

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