From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751948AbaKDB51 (ORCPT ); Mon, 3 Nov 2014 20:57:27 -0500 Received: from mail-ig0-f182.google.com ([209.85.213.182]:65032 "EHLO mail-ig0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751414AbaKDB50 (ORCPT ); Mon, 3 Nov 2014 20:57:26 -0500 Date: Mon, 3 Nov 2014 17:57:21 -0800 From: Dmitry Torokhov To: Linus Walleij Cc: Samuel Ortiz , Lee Jones , linux-kernel@vger.kernel.org, linux-input@vger.kernel.org Subject: Re: [PATCH 3/3] input: stmpe: bias keypad columns properly Message-ID: <20141104015721.GA21814@dtor-ws> References: <1413636999-3326-1-git-send-email-linus.walleij@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1413636999-3326-1-git-send-email-linus.walleij@linaro.org> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Linus, On Sat, Oct 18, 2014 at 02:56:39PM +0200, Linus Walleij wrote: > + if (variant->set_pullup) { > + u8 val; > + > + ret = stmpe_reg_read(stmpe, pureg); > + if (ret) > + return ret; > + > + /* Do not touch unused pins, may be used for GPIO */ > + val = ret & ~pu_pins; > + val |= pu_pins; > + > + ret = stmpe_reg_write(stmpe, pureg, val); Don't we need if (ret) { dev_err(...); return ret; } here? -- Dmitry