From: Dan Aloni <da-x@gmx.net>
To: Andrew Morton <akpm@osdl.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] missing NULL check in drivers/char/n_tty.c
Date: Mon, 21 Jun 2004 10:36:44 +0300 [thread overview]
Message-ID: <20040621073644.GA10781@callisto.yi.org> (raw)
In-Reply-To: <20040620235824.5407bc4c.akpm@osdl.org>
On Sun, Jun 20, 2004 at 11:58:24PM -0700, Andrew Morton wrote:
> Dan Aloni <da-x@gmx.net> wrote:
> >
> > The rest of the kernel treats tty->driver->chars_in_buffer as a possible
> > NULL. This patch changes normal_poll() to be consistent with the rest of
> > the code.
>
> It would be better to change the rest of the kernel - remove the tests.
>
> If any driver fails to implement ->chars_in_buffer() then we get a nice
> oops which tells us that driver needs a stub handler.
Are you sure that it won't affect the logic in tty_wait_until_sent()
drastically? It acts quite differently when ->chars_in_buffer == NULL.
--
Dan Aloni
da-x@colinux.org
next prev parent reply other threads:[~2004-06-21 7:35 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-21 6:38 [PATCH] missing NULL check in drivers/char/n_tty.c Dan Aloni
2004-06-21 6:58 ` Andrew Morton
2004-06-21 7:36 ` Dan Aloni [this message]
2004-06-21 7:39 ` Andrew Morton
2004-06-21 8:24 ` Dan Aloni
2004-06-21 15:06 ` Paul Fulghum
2004-06-21 18:46 ` Andrew Morton
2004-06-21 19:52 ` Paul Fulghum
2004-06-21 22:48 ` Dan Aloni
2004-06-21 23:56 ` Paul Fulghum
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