From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pb0-f53.google.com (mail-pb0-f53.google.com [209.85.160.53]) by kanga.kvack.org (Postfix) with ESMTP id DA8BB6B003B for ; Tue, 4 Feb 2014 19:06:40 -0500 (EST) Received: by mail-pb0-f53.google.com with SMTP id md12so9140367pbc.40 for ; Tue, 04 Feb 2014 16:06:40 -0800 (PST) Received: from mail-pa0-f52.google.com (mail-pa0-f52.google.com [209.85.220.52]) by mx.google.com with ESMTPS id fb4si2048571pbb.82.2014.02.04.16.06.39 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 04 Feb 2014 16:06:39 -0800 (PST) Received: by mail-pa0-f52.google.com with SMTP id bj1so9186637pad.25 for ; Tue, 04 Feb 2014 16:06:39 -0800 (PST) Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable From: Sebastian Capella In-Reply-To: <1593382.PUxxx0NMeh@vostro.rjw.lan> References: <1391546631-7715-1-git-send-email-sebastian.capella@linaro.org> <20140204223733.30015.23993@capellas-linux> <20140204232222.31169.83206@capellas-linux> <1593382.PUxxx0NMeh@vostro.rjw.lan> Message-ID: <20140205000642.6803.8182@capellas-linux> Subject: Re: [PATCH v7 2/3] trivial: PM / Hibernate: clean up checkpatch in hibernate.c Date: Tue, 04 Feb 2014 16:06:42 -0800 Sender: owner-linux-mm@kvack.org List-ID: To: "Rafael J. Wysocki" Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-pm@vger.kernel.org, linaro-kernel@lists.linaro.org, patches@linaro.org, Pavel Machek , Len Brown Quoting Rafael J. Wysocki (2014-02-04 16:03:29) > On Tuesday, February 04, 2014 03:22:22 PM Sebastian Capella wrote: > > Quoting Sebastian Capella (2014-02-04 14:37:33) > > > Quoting Rafael J. Wysocki (2014-02-04 13:36:29) > > > > > static int __init resumedelay_setup(char *str) > > > > > { > > > > > - resume_delay =3D simple_strtoul(str, NULL, 0); > > > > > + int ret =3D kstrtoint(str, 0, &resume_delay); > > > > > + /* mask must_check warn; on failure, leaves resume_delay un= changed */ > > > > > + (void)ret; > > = > > One unintended consequence of this change is that it'll now accept a > > negative integer parameter. > = > Well, what about using kstrtouint(), then? I was thinking of doing something like: int delay, res; res =3D kstrtoint(str, 0, &delay); if (!res && delay >=3D 0) resume_delay =3D delay; return 1; > Well, kstrtoint() is used in some security-sensitive places AFAICS, so it > really is better to check its return value in general. The __must_check > reminds people about that. Thanks! Sebastian -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org