From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932362AbdDRILo (ORCPT ); Tue, 18 Apr 2017 04:11:44 -0400 Received: from mx2.suse.de ([195.135.220.15]:45041 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754751AbdDRIKC (ORCPT ); Tue, 18 Apr 2017 04:10:02 -0400 Subject: Re: [PATCH] xen/9pfs: initialize len to 0 to detect xenbus_read errors To: Stefano Stabellini , xen-devel@lists.xen.org References: <1492106276-13505-1-git-send-email-sstabellini@kernel.org> Cc: linux-kernel@vger.kernel.org, Stefano Stabellini , dan.carpenter@oracle.com, boris.ostrovsky@oracle.com, Eric Van Hensbergen , Ron Minnich , Latchesar Ionkov , v9fs-developer@lists.sourceforge.net From: Juergen Gross Message-ID: Date: Tue, 18 Apr 2017 10:09:59 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 In-Reply-To: <1492106276-13505-1-git-send-email-sstabellini@kernel.org> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 13/04/17 19:57, Stefano Stabellini wrote: > In order to use "len" to check for xenbus_read errors properly, we need > to initialize len to 0 before passing it to xenbus_read. > > Signed-off-by: Stefano Stabellini > CC: dan.carpenter@oracle.com > CC: jgross@suse.com > CC: boris.ostrovsky@oracle.com > CC: Eric Van Hensbergen > CC: Ron Minnich > CC: Latchesar Ionkov > CC: v9fs-developer@lists.sourceforge.net Committed to xen/tip for-linus-4.12 Thanks, Juergen From mboxrd@z Thu Jan 1 00:00:00 1970 From: Juergen Gross Subject: Re: [PATCH] xen/9pfs: initialize len to 0 to detect xenbus_read errors Date: Tue, 18 Apr 2017 10:09:59 +0200 Message-ID: References: <1492106276-13505-1-git-send-email-sstabellini@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1492106276-13505-1-git-send-email-sstabellini@kernel.org> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Stefano Stabellini , xen-devel@lists.xen.org Cc: Latchesar Ionkov , Eric Van Hensbergen , linux-kernel@vger.kernel.org, Stefano Stabellini , v9fs-developer@lists.sourceforge.net, Ron Minnich , boris.ostrovsky@oracle.com, dan.carpenter@oracle.com List-Id: xen-devel@lists.xenproject.org T24gMTMvMDQvMTcgMTk6NTcsIFN0ZWZhbm8gU3RhYmVsbGluaSB3cm90ZToKPiBJbiBvcmRlciB0 byB1c2UgImxlbiIgdG8gY2hlY2sgZm9yIHhlbmJ1c19yZWFkIGVycm9ycyBwcm9wZXJseSwgd2Ug bmVlZAo+IHRvIGluaXRpYWxpemUgbGVuIHRvIDAgYmVmb3JlIHBhc3NpbmcgaXQgdG8geGVuYnVz X3JlYWQuCj4gCj4gU2lnbmVkLW9mZi1ieTogU3RlZmFubyBTdGFiZWxsaW5pIDxzdGVmYW5vQGFw b3JldG8uY29tPgo+IENDOiBkYW4uY2FycGVudGVyQG9yYWNsZS5jb20KPiBDQzogamdyb3NzQHN1 c2UuY29tCj4gQ0M6IGJvcmlzLm9zdHJvdnNreUBvcmFjbGUuY29tCj4gQ0M6IEVyaWMgVmFuIEhl bnNiZXJnZW4gPGVyaWN2aEBnbWFpbC5jb20+Cj4gQ0M6IFJvbiBNaW5uaWNoIDxybWlubmljaEBz YW5kaWEuZ292Pgo+IENDOiBMYXRjaGVzYXIgSW9ua292IDxsdWNob0Bpb25rb3YubmV0Pgo+IEND OiB2OWZzLWRldmVsb3BlckBsaXN0cy5zb3VyY2Vmb3JnZS5uZXQKCkNvbW1pdHRlZCB0byB4ZW4v dGlwIGZvci1saW51cy00LjEyCgoKVGhhbmtzLAoKSnVlcmdlbgoKCl9fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVu LWRldmVsQGxpc3RzLnhlbi5vcmcKaHR0cHM6Ly9saXN0cy54ZW4ub3JnL3hlbi1kZXZlbAo=