From: Christian Cotte-Barrot <Christian.Cotte-Barrot@bull.net>
To: linux-ia64@vger.kernel.org
Subject: Re: [Linux-ia64] Re: memcpy failure
Date: Fri, 15 Nov 2002 13:51:36 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590709805451@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590709805424@msgid-missing>
Matthew Wilcox wrote:
>
> On Fri, Nov 15, 2002 at 11:32:10AM +0100, Christian Cotte-Barrot wrote:
> > On bad return from memcpy the concerned device driver loggs warning
> > in /var/log/messages and the system administrator may have some doubt
> > about the good working of the device.
>
> _what_ bad return from memcpy?! memcpy returns the pointer that was
> passed to it. What are you going to check for?
>
Simply, bad return is whatever is not equal to the dest pointer:
if ((memcpy(rptr, ch->rxptr + tail, dataToRead)) != rptr)
...
next prev parent reply other threads:[~2002-11-15 13:51 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-14 9:01 [Linux-ia64] Re: memcpy failure Christian Cotte-Barrot
2002-11-14 12:23 ` Matthew Wilcox
2002-11-14 15:10 ` Don Dugger
2002-11-14 15:47 ` [Linux-ia64] " Chen, Kenneth W
2002-11-14 15:53 ` [Linux-ia64] " Chen, Kenneth W
2002-11-14 16:09 ` Mario Smarduch
2002-11-14 16:12 ` Matthew Wilcox
2002-11-14 19:21 ` Mario Smarduch
2002-11-14 19:37 ` David Mosberger
2002-11-14 20:32 ` Chen, Kenneth W
2002-11-15 10:32 ` Christian Cotte-Barrot
2002-11-15 13:04 ` Matthew Wilcox
2002-11-15 13:51 ` Christian Cotte-Barrot [this message]
2002-11-15 14:17 ` Matthew Wilcox
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