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=-5.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 884CEC10F13 for ; Mon, 8 Apr 2019 12:01:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 623B720880 for ; Mon, 8 Apr 2019 12:01:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726479AbfDHMBl (ORCPT ); Mon, 8 Apr 2019 08:01:41 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:43331 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726005AbfDHMBl (ORCPT ); Mon, 8 Apr 2019 08:01:41 -0400 Received: by atrey.karlin.mff.cuni.cz (Postfix, from userid 512) id 8D90380742; Mon, 8 Apr 2019 14:01:31 +0200 (CEST) Date: Mon, 8 Apr 2019 14:01:42 +0200 From: Pavel Machek To: Tony Lindgren Cc: Sebastian Reichel , linux-pm@vger.kernel.org, linux-omap@vger.kernel.org Subject: Re: [PATCH 1/7] power: supply: cpcap-battery: Fix division by zero Message-ID: <20190408120142.GA19749@amd> References: <20190407181254.64537-1-tony@atomide.com> <20190407181254.64537-2-tony@atomide.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="OXfL5xGRrasGEqWY" Content-Disposition: inline In-Reply-To: <20190407181254.64537-2-tony@atomide.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org --OXfL5xGRrasGEqWY Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun 2019-04-07 11:12:48, Tony Lindgren wrote: > If called fast enough so samples do not increment, we can get > division by zero in kernel: >=20 > __div0 > cpcap_battery_cc_raw_div > cpcap_battery_get_property > power_supply_get_property.part.1 > power_supply_get_property > power_supply_show_property > power_supply_uevent >=20 > Fixes: 874b2adbed12 ("power: supply: cpcap-battery: Add a battery driver") > Cc: Pavel Machek > Signed-off-by: Tony Lindgren Acked-by: Pavel Machek --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --OXfL5xGRrasGEqWY Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlyrOCYACgkQMOfwapXb+vKbzQCgqW5zqfJ/jgPWrlRMsuhdwDl6 S3QAn0tPPQ8hAtqE4tYKVSTI7miJw6m7 =pgG/ -----END PGP SIGNATURE----- --OXfL5xGRrasGEqWY--