From: Jesper Juhl <juhl-lkml@dif.dk>
To: Andrew Morton <akpm@osdl.org>
Cc: linux-kernel@vger.kernel.org, eokerson@quicknet.net, joe@perches.com
Subject: Re: [PATCH] kfree cleanups (remove redundant NULL checks) in drivers/telephony/ (actually ixj.c only)
Date: Mon, 9 May 2005 00:03:04 +0200 (CEST) [thread overview]
Message-ID: <Pine.LNX.4.62.0505082359530.2440@dragon.hyggekrogen.localhost> (raw)
In-Reply-To: <Pine.LNX.4.62.0505070407260.2384@dragon.hyggekrogen.localhost>
On Sat, 7 May 2005, Jesper Juhl wrote:
> On Fri, 6 May 2005, Andrew Morton wrote:
>
> >
> > This patch adds behavioural changes:
> >
[snip]
> > Now we'll zero ->read_buffer_size even if ->read_buffer was already NULL.
> >
> > It's hard to believe that this could cause any problems, but please check
> > that.
> >
> When I initially read the code I didn't see any harm that could be done by
> that, but I'll take a second more careful look and report back - I'm
> pretty sure it's safe though.
> I'll do this tomorrow since I'm off to catch some sleep now.
>
Ok, I've taken a second look at the code, and I don't see any places where
read_buffer_size are used where read_buffer is NULL, so zeroing
read_buffer_size unconditionally when kfree()'ing read_buffer should be
quite safe.
--
Jesper
prev parent reply other threads:[~2005-05-08 21:59 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-07 0:58 Jesper Juhl
2005-05-07 1:54 ` Jesper Juhl
2005-05-07 2:02 ` Andrew Morton
2005-05-07 2:09 ` Jesper Juhl
2005-05-08 22:03 ` Jesper Juhl [this message]
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