Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751238AbcDTUUB (ORCPT ); Wed, 20 Apr 2016 16:20:01 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:57016 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750926AbcDTUT7 (ORCPT ); Wed, 20 Apr 2016 16:19:59 -0400 Date: Wed, 20 Apr 2016 13:19:55 -0700 From: Darren Hart To: Giedrius =?utf-8?Q?Statkevi=C4=8Dius?= Cc: corentin.chary@gmail.com, acpi4asus-user@lists.sourceforge.net, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 2/2] asus-laptop: correct error handling in sysfs_acpi_set Message-ID: <20160420201955.GA35572@f23x64.localdomain> References: <1460764917-1042-1-git-send-email-giedrius.statkevicius@gmail.com> <1460764917-1042-2-git-send-email-giedrius.statkevicius@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1460764917-1042-2-git-send-email-giedrius.statkevicius@gmail.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1094 Lines: 38 On Sat, Apr 16, 2016 at 03:01:57AM +0300, Giedrius Statkevičius wrote: > Properly return rv back to the caller in the case of an error in > parse_arg. In the process remove a unused variable 'out'. The initial problem if I recall was value being uninitialized. Is that correct? > > Signed-off-by: Giedrius Statkevičius > --- > drivers/platform/x86/asus-laptop.c | 5 ++--- > 1 file changed, 2 insertions(+), 3 deletions(-) > > diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c > index d86d42e..9a69734 100644 > --- a/drivers/platform/x86/asus-laptop.c > +++ b/drivers/platform/x86/asus-laptop.c > @@ -946,11 +946,10 @@ static ssize_t sysfs_acpi_set(struct asus_laptop *asus, > const char *method) > { > int rv, value; > - int out = 0; > > rv = parse_arg(buf, count, &value); > - if (rv > 0) > - out = value ? 1 : 0; > + if (rv <= 0) > + return rv; > > if (write_acpi_int(asus->handle, method, value)) > return -ENODEV; > -- > 2.8.0 > > -- Darren Hart Intel Open Source Technology Center