From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from eggs.gnu.org ([140.186.70.92]:48484)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <kwolf@redhat.com>) id 1QZ2ul-0005b3-BT
	for qemu-devel@nongnu.org; Tue, 21 Jun 2011 11:30:56 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <kwolf@redhat.com>) id 1QZ2uj-0007ES-Qu
	for qemu-devel@nongnu.org; Tue, 21 Jun 2011 11:30:55 -0400
Received: from mx1.redhat.com ([209.132.183.28]:57480)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <kwolf@redhat.com>) id 1QZ2uj-0007EH-CD
	for qemu-devel@nongnu.org; Tue, 21 Jun 2011 11:30:53 -0400
Received: from int-mx12.intmail.prod.int.phx2.redhat.com
	(int-mx12.intmail.prod.int.phx2.redhat.com [10.5.11.25])
	by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id p5LFUpdw020600
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK)
	for <qemu-devel@nongnu.org>; Tue, 21 Jun 2011 11:30:52 -0400
Received: from dhcp-5-188.str.redhat.com (dhcp-5-175.str.redhat.com
	[10.32.5.175])
	by int-mx12.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP
	id p5LFUo3S031857
	(version=TLSv1/SSLv3 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO)
	for <qemu-devel@nongnu.org>; Tue, 21 Jun 2011 11:30:51 -0400
Message-ID: <4E00B9D9.5020602@redhat.com>
Date: Tue, 21 Jun 2011 17:33:45 +0200
From: Kevin Wolf <kwolf@redhat.com>
MIME-Version: 1.0
References: <1306927751-8352-1-git-send-email-kwolf@redhat.com>
In-Reply-To: <1306927751-8352-1-git-send-email-kwolf@redhat.com>
Content-Type: text/plain; charset=ISO-8859-15
Content-Transfer-Encoding: 7bit
Subject: Re: [Qemu-devel] [PATCH] qemu-char: Print strerror message on
	failure
List-Id: <qemu-devel.nongnu.org>
List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: qemu-devel@nongnu.org

Am 01.06.2011 13:29, schrieb Kevin Wolf:
> The only way for chardev drivers to communicate an error was to return a NULL
> pointer, which resulted in an error message that said _that_ something went
> wrong, but not _why_.
> 
> This patch changes the interface to return 0/-errno and updates
> qemu_chr_open_opts to use strerror to display a more helpful error message.
> 
> Signed-off-by: Kevin Wolf <kwolf@redhat.com>

Ping?