From: Jens Axboe <axboe@suse.de>
To: "Richard B. Johnson" <root@chaos.analogic.com>
Cc: Pete Zaitcev <zaitcev@metabyte.com>, linux-kernel@vger.kernel.org
Subject: Re: patchlet for cs46xx
Date: Thu, 25 Jan 2001 18:59:49 +0100 [thread overview]
Message-ID: <20010125185949.B444@suse.de> (raw)
In-Reply-To: <3A70588B.4692D937@metabyte.com> <Pine.LNX.3.95.1010125123928.9456A-100000@chaos.analogic.com>
In-Reply-To: <Pine.LNX.3.95.1010125123928.9456A-100000@chaos.analogic.com>; from root@chaos.analogic.com on Thu, Jan 25, 2001 at 12:41:28PM -0500
On Thu, Jan 25 2001, Richard B. Johnson wrote:
> [SNIPPED...]
> >From what I tested, copy_to/from_user, now seg-faults the caller directly.
> If the function returns, it worked. Therefore you will never get a
> chance to return -EFAULT.
Huh?? copy_to/from_user returns the bytes _not_ copied, in which
case you return -EFAULT go segv the caller.
I think the confusion usually is that put/get_user return -EFAULT
directly.
--
* Jens Axboe <axboe@suse.de>
* SuSE Labs
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next prev parent reply other threads:[~2001-01-25 18:01 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-25 16:47 Pete Zaitcev
2001-01-25 17:41 ` Richard B. Johnson
2001-01-25 17:59 ` Jens Axboe [this message]
2001-01-25 19:05 ` Richard B. Johnson
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