From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754770AbaACALQ (ORCPT ); Thu, 2 Jan 2014 19:11:16 -0500 Received: from mail-pb0-f49.google.com ([209.85.160.49]:42495 "EHLO mail-pb0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754158AbaACAH6 (ORCPT ); Thu, 2 Jan 2014 19:07:58 -0500 Date: Thu, 2 Jan 2014 11:17:57 -0800 From: Dmitry Torokhov To: Mark Brown Cc: Stephen Boyd , linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-input@vger.kernel.org Subject: Re: [PATCH 2/7] Input: pmic8xxx-pwrkey - Migrate to regmap APIs Message-ID: <20140102191757.GA2025@core.coreip.homeip.net> References: <1386718996-3733-1-git-send-email-sboyd@codeaurora.org> <1386718996-3733-3-git-send-email-sboyd@codeaurora.org> <20131215113337.GB14818@core.coreip.homeip.net> <20140102184959.GI31886@sirena.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140102184959.GI31886@sirena.org.uk> 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 On Thu, Jan 02, 2014 at 06:49:59PM +0000, Mark Brown wrote: > On Sun, Dec 15, 2013 at 03:33:37AM -0800, Dmitry Torokhov wrote: > > On Tue, Dec 10, 2013 at 03:43:11PM -0800, Stephen Boyd wrote: > > > > + regmap = dev_get_regmap(pdev->dev.parent, NULL); > > > + if (!regmap) > > > + return -ENODEV; > > > And you are leaking memory here... > > He's not, dev_get_regmap() just gets a pointer to an existing regmap - > no reference is taken and nothing is allocated. It's a helper that's > mainly there so that generic code can be written without needing the > regmap to be passed around. The caller is responsible for ensuring that > it will stick around for as long as it's used (generally by having it > lifetime managed with the device). I was not talking about data returned by dev_get_regmap() but all other memory that was allocated before as this was pre devm conversion of the driver. Thanks. -- Dmitry