From mboxrd@z Thu Jan  1 00:00:00 1970
From: Zhouyang Jia <jiazhouyang09@gmail.com>
Subject: [PATCH v5] scsi: xen-scsifront: add error handling for
 xenbus_printf
Date: Sat, 16 Jun 2018 01:05:01 +0800
Message-ID: <1529082301-59038-1-git-send-email-jiazhouyang09__35700.3136691221$1529082245$gmane$org@gmail.com>
References: <1528774962-39173-1-git-send-email-jiazhouyang09@gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <xen-devel-bounces@lists.xenproject.org>
Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6])
 by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from
 <srs0=iosv=jb=gmail.com=jiazhouyang09@srs-us1.protection.inumbo.net>)
 id 1fTs9u-0002KO-9d
 for xen-devel@lists.xenproject.org; Fri, 15 Jun 2018 17:05:10 +0000
Received: by mail-pf0-x244.google.com with SMTP id c22-v6so5167111pfi.2
 for <xen-devel@lists.xenproject.org>; Fri, 15 Jun 2018 10:05:08 -0700 (PDT)
In-Reply-To: <1528774962-39173-1-git-send-email-jiazhouyang09@gmail.com>
List-Unsubscribe: <https://lists.xenproject.org/mailman/options/xen-devel>,
 <mailto:xen-devel-request@lists.xenproject.org?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xenproject.org>
List-Help: <mailto:xen-devel-request@lists.xenproject.org?subject=help>
List-Subscribe: <https://lists.xenproject.org/mailman/listinfo/xen-devel>,
 <mailto:xen-devel-request@lists.xenproject.org?subject=subscribe>
Errors-To: xen-devel-bounces@lists.xenproject.org
Sender: "Xen-devel" <xen-devel-bounces@lists.xenproject.org>
Cc: Juergen Gross <jgross@suse.com>, "James E.J. Bottomley" <jejb@linux.vnet.ibm.com>, linux-scsi@vger.kernel.org, "Martin K. Petersen" <martin.petersen@oracle.com>, linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org, Boris Ostrovsky <boris.ostrovsky@oracle.com>, Zhouyang Jia <jiazhouyang09@gmail.com>
List-Id: xen-devel@lists.xenproject.org
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