linux-kernel - Re: [PATCH 11/25] dynamic_debug: factor show_ddebug_query out of ddebug_parse

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Date:	Tue, 26 Jul 2011 09:15:20 +0200
From:	Bart Van Assche <bvanassche@....org>
To:	Jim Cromie <jim.cromie@...il.com>
Cc:	jbaron@...hat.com, joe@...ches.com, gregkh@...e.de,
	linux-kernel@...r.kernel.org, gnb@...h.org
Subject: Re: [PATCH 11/25] dynamic_debug: factor show_ddebug_query out of ddebug_parse_query

On Mon, Jul 25, 2011 at 11:42 PM, Jim Cromie <jim.cromie@...il.com> wrote:
> @@ -435,6 +448,10 @@ static int ddebug_exec_queries(char *query)
>        char *split;
>        int i, errs = 0, exitcode = 0, rc;
>
> +       prbuf_query = kmalloc(1024, GFP_KERNEL);
> +       if (prbuf_query == NULL)
> +               return -ENOMEM;
> +
>        for (i = 0; query; query = split) {
>                split = strpbrk(query, ";\n");
>                if (split)
> @@ -452,6 +469,7 @@ static int ddebug_exec_queries(char *query)
>                }
>                i++;
>        }
> +       kfree(prbuf_query);

The above changes invoke memory allocation and deallocation. But the
allocated buffer isn't used anywhere - neither in this patch nor in
any later patch ???

Bart.
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