linux-kernel - Re: [PATCHv3] fixed resource leak in scripts/mod/modpost.c

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Message-ID: <AANLkTi=UfzGay5XQKMpPCZTSO5SJ1jDknqwayhrEZJO0@mail.gmail.com>
Date:	Tue, 10 Aug 2010 14:35:48 +0300
From:	Andy Shevchenko <andy.shevchenko@...il.com>
To:	Alexey Fomenko <ext-alexey.fomenko@...ia.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Trevor Keith <tsrk@...k.net>,
	Rusty Russell <rusty@...tcorp.com.au>,
	ext Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCHv3] fixed resource leak in scripts/mod/modpost.c

On Tue, Aug 10, 2010 at 1:52 PM, Alexey Fomenko
<ext-alexey.fomenko@...ia.com> wrote:
> From: Alexey Fomenko <ext-alexey.fomenko@...ia.com>
>
> sec2annotation() returns malloc'ed buffer directly to printf as an
> argument. Patch lets free this buffer after printing. Preventing ops
> while freeing the buffer by changing return const str to return
> strdup empty line.
>
> Signed-off-by: Alexey Fomenko <ext-alexey.fomenko@...ia.com>
> ---
>  scripts/mod/modpost.c |   58 ++++++++++++++++++++++++++++++++++++------------
>  1 files changed, 42 insertions(+), 16 deletions(-)
>
> diff -ur linux-2.6.35/scripts/mod/modpost.c linux-2.6.35_b/scripts/mod/modpost.c
> --- linux-2.6.35/scripts/mod/modpost.c  2010-08-10 12:11:03.854528620 +0300
> +++ linux-2.6.35_b/scripts/mod/modpost.c        2010-08-10 12:11:25.174529109 +0300
> @@ -1165,9 +1165,9 @@
>                        strcat(p, "data ");
>                else
>                        strcat(p, " ");
> -               return r; /* we leak her but we do not care */
> +               return r;
Here is the extra tail whitespace.

> @@ -1283,11 +1301,15 @@
>                "uses functionality in the exit path.\n"
>                "The fix is often to remove the %sannotation of\n"
>                "%s%s so it may be used outside an exit section.\n",
> -               from, sec2annotation(fromsec), fromsym, from_p,
> -               to, sec2annotation(tosec), tosym, to_p,
> +               from, prl_from, fromsym, from_p,
> +               to, prl_to, tosym, to_p,
>                sec2annotation(tosec), tosym, to_p);
^^^^^^^^^^^^^^^^^^^^^^ missed change


Acked-by: Andy Shevchenko <ext-andriy.shevchenko@...ia.com>
(after fixing above issues)

-- 
With Best Regards,
Andy Shevchenko
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