From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752166AbeBHGrh (ORCPT ); Thu, 8 Feb 2018 01:47:37 -0500 Received: from mail.kernel.org ([198.145.29.99]:40534 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751305AbeBHGrd (ORCPT ); Thu, 8 Feb 2018 01:47:33 -0500 DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9B44220671 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=shawnguo@kernel.org Date: Thu, 8 Feb 2018 14:47:10 +0800 From: Shawn Guo To: Andrey Smirnov Cc: Stefan Agner , Lucas Stach , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 1/2] soc: imx: gpcv2: Do not pass static memory as platform data Message-ID: <20180208064709.GB31910@dragon> References: <20180122150748.1742-1-andrew.smirnov@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180122150748.1742-1-andrew.smirnov@gmail.com> 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 Mon, Jan 22, 2018 at 07:07:47AM -0800, Andrey Smirnov wrote: > Platform device core assumes the ownership of dev.platform_data as > well as that it is dynamically allocated and it will try to kfree it > as a part of platform_device_release(). Change the code to pass > kzalloc'ed chunk of memory instead of a pointer to a static memory to > avoid causing a BUG() when calling platform_device_put(). > > The problem can be reproduced by artificially enabling the error path > of platform_device_add() call (around line 357). > > Note that this change also allows us to constify imx7_pgc_domains, > since we no longer need to be able to modify it. > > Cc: Shawn Guo > Cc: Stefan Agner > Cc: Lucas Stach > Cc: linux-arm-kernel@lists.infradead.org > Cc: linux-kernel@vger.kernel.org > Signed-off-by: Andrey Smirnov Applied both, thanks.