From: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
To: Kevin Wolf <kwolf@redhat.com>
Cc: "Stefan Hajnoczi" <stefanha@gmail.com>,
"Zhi Hui Li" <zhihuili@linux.vnet.ibm.com>,
zhihuili@cn.ibm.com, 陳韋任 <chenwj@iis.sinica.edu.tw>,
QEMU-devel <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] some questions about g_malloc in qemu
Date: Thu, 15 Dec 2011 10:19:39 +0000 [thread overview]
Message-ID: <20111215101939.GA7666@stefanha-thinkpad.localdomain> (raw)
In-Reply-To: <4EE9C5BF.1070400@redhat.com>
On Thu, Dec 15, 2011 at 11:02:39AM +0100, Kevin Wolf wrote:
> Am 15.12.2011 10:36, schrieb Stefan Hajnoczi:
> > On Thu, Dec 15, 2011 at 04:28:28PM +0800, 陳韋任 wrote:
> >> I found this in HACKING:
> >>
> >> Please note that NULL check for the g_malloc result is redundant and
> >> that g_malloc() call with zero size is not allowed.
> >
> > So we have:
> >
> > 1. You should not request 0 bytes from g_malloc().
>
> I think this was related to qemu_malloc() and Anthony's sed run made it
> refer to g_malloc(), even though it works just fine with 0 bytes. We
> should probably remove this sentence.
If you remove it then you can't interpret it the way I did. It's not
longer possible to say that g_malloc() never returns NULL. You always
have to qualify that with "unless you ask for 0 bytes". :)
Stefan
next prev parent reply other threads:[~2011-12-15 10:20 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-15 8:10 [Qemu-devel] some questions about g_malloc in qemu Zhi Hui Li
2011-12-15 8:14 ` 陳韋任
2011-12-15 8:19 ` Andreas Färber
2011-12-15 8:28 ` 陳韋任
2011-12-15 9:36 ` Stefan Hajnoczi
2011-12-15 9:48 ` Zhi Hui Li
2011-12-15 9:56 ` 陳韋任
2011-12-15 10:02 ` Kevin Wolf
2011-12-15 10:19 ` Stefan Hajnoczi [this message]
2011-12-15 10:37 ` Max Filippov
2011-12-15 10:44 ` Kevin Wolf
2011-12-15 10:45 ` Peter Maydell
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