From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 91CA1C43381 for ; Mon, 1 Apr 2019 21:34:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 67EFF206C0 for ; Mon, 1 Apr 2019 21:34:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728648AbfDAVeO (ORCPT ); Mon, 1 Apr 2019 17:34:14 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:55106 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725893AbfDAVeL (ORCPT ); Mon, 1 Apr 2019 17:34:11 -0400 Received: by atrey.karlin.mff.cuni.cz (Postfix, from userid 512) id 446DB804E3; Mon, 1 Apr 2019 23:34:00 +0200 (CEST) Date: Mon, 1 Apr 2019 23:34:07 +0200 From: Pavel Machek To: Brian Masney Cc: lee.jones@linaro.org, daniel.thompson@linaro.org, jingoohan1@gmail.com, robh+dt@kernel.org, jacek.anaszewski@gmail.com, mark.rutland@arm.com, b.zolnierkie@samsung.com, dri-devel@lists.freedesktop.org, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fbdev@vger.kernel.org, dmurphy@ti.com, jonathan@marek.ca Subject: Re: [PATCH v2 1/3] backlight: lm3630a: return 0 on success in update_status functions Message-ID: <20190401213407.GC14681@amd> References: <20190401103034.21062-1-masneyb@onstation.org> <20190401103034.21062-2-masneyb@onstation.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="1ccMZA6j1vT5UqiK" Content-Disposition: inline In-Reply-To: <20190401103034.21062-2-masneyb@onstation.org> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --1ccMZA6j1vT5UqiK Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon 2019-04-01 06:30:32, Brian Masney wrote: > lm3630a_bank_a_update_status() and lm3630a_bank_b_update_status() > both return the brightness value if the brightness was successfully > updated. Writing to these attributes via sysfs would cause a 'Bad > address' error to be returned. These functions should return 0 on > success, so let's change it to correct that error. >=20 > Signed-off-by: Brian Masney > Fixes: 28e64a68a2ef ("backlight: lm3630: apply chip revision") Acked-by: Pavel Machek > --- > drivers/video/backlight/lm3630a_bl.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) >=20 > diff --git a/drivers/video/backlight/lm3630a_bl.c b/drivers/video/backlig= ht/lm3630a_bl.c > index 2030a6b77a09..ef2553f452ca 100644 > --- a/drivers/video/backlight/lm3630a_bl.c > +++ b/drivers/video/backlight/lm3630a_bl.c > @@ -201,7 +201,7 @@ static int lm3630a_bank_a_update_status(struct backli= ght_device *bl) > LM3630A_LEDA_ENABLE, LM3630A_LEDA_ENABLE); > if (ret < 0) > goto out_i2c_err; > - return bl->props.brightness; > + return 0; > =20 > out_i2c_err: > dev_err(pchip->dev, "i2c failed to access\n"); > @@ -278,7 +278,7 @@ static int lm3630a_bank_b_update_status(struct backli= ght_device *bl) > LM3630A_LEDB_ENABLE, LM3630A_LEDB_ENABLE); > if (ret < 0) > goto out_i2c_err; > - return bl->props.brightness; > + return 0; > =20 > out_i2c_err: > dev_err(pchip->dev, "i2c failed to access REG_CTRL\n"); --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --1ccMZA6j1vT5UqiK Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlyig88ACgkQMOfwapXb+vITaACdF82J0YVRKNAu08dGT2c58KU7 iYAAnA5BrWUDZ425s2tdrFOD+Ls7mNhx =xORY -----END PGP SIGNATURE----- --1ccMZA6j1vT5UqiK--