From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751934AbdI2MPm (ORCPT ); Fri, 29 Sep 2017 08:15:42 -0400 Received: from mail2-relais-roc.national.inria.fr ([192.134.164.83]:34271 "EHLO mail2-relais-roc.national.inria.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750922AbdI2MPk (ORCPT ); Fri, 29 Sep 2017 08:15:40 -0400 X-IronPort-AV: E=Sophos;i="5.42,452,1500933600"; d="scan'208";a="293326539" Date: Fri, 29 Sep 2017 14:15:38 +0200 (CEST) From: Julia Lawall X-X-Sender: jll@hadrien To: quentin.schulz@free-electrons.com cc: linus.walleij@linaro.org, robh+dt@kernel.org, mark.rutland@arm.com, wens@csie.org, linux@armlinux.org.uk, maxime.ripard@free-electrons.com, lee.jones@linaro.org, linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@googlegroups.com, thomas.petazzoni@free-electrons.com, kbuild-all@01.org Subject: Re: [PATCH v2 02/10] pinctrl: axp209: add pinctrl features (fwd) Message-ID: User-Agent: Alpine 2.20 (DEB 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I'm not sure that it is allowed to do krealloc on devm allocated data. See lins 468 and 485. julia ---------- Forwarded message ---------- Date: Fri, 29 Sep 2017 20:00:03 +0800 From: kbuild test robot To: kbuild@01.org Cc: Julia Lawall Subject: Re: [PATCH v2 02/10] pinctrl: axp209: add pinctrl features Hi Quentin, [auto build test WARNING on ] url: https://github.com/0day-ci/linux/commits/Quentin-Schulz/add-pinmuxing-support-for-pins-in-AXP209-and-AXP813-PMICs/20170929-162846 base: :::::: branch date: 4 hours ago :::::: commit date: 4 hours ago >> drivers/pinctrl/pinctrl-axp209.c:485:19-27: WARNING: invalid free of devm_ allocated data # https://github.com/0day-ci/linux/commit/1e016076fb841f90f047d2b001c9f8d9fd5e2953 git remote add linux-review https://github.com/0day-ci/linux git remote update linux-review git checkout 1e016076fb841f90f047d2b001c9f8d9fd5e2953 vim +485 drivers/pinctrl/pinctrl-axp209.c 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 446 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 447 static int axp20x_build_state(struct platform_device *pdev) 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 448 { 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 449 struct axp20x_gpio *gpio = platform_get_drvdata(pdev); 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 450 unsigned int npins = gpio->desc->npins; 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 451 const struct axp20x_desc_pin *pin; 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 452 struct axp20x_desc_function *func; 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 453 int i, ret; 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 454 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 455 gpio->ngroups = npins; 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 456 gpio->groups = devm_kzalloc(&pdev->dev, 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 457 gpio->ngroups * sizeof(*gpio->groups), 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 458 GFP_KERNEL); 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 459 if (!gpio->groups) 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 460 return -ENOMEM; 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 461 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 462 for (i = 0; i < npins; i++) { 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 463 gpio->groups[i].name = gpio->desc->pins[i].pin.name; 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 464 gpio->groups[i].pin = gpio->desc->pins[i].pin.number; 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 465 } 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 466 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 467 /* We assume 4 functions per pin should be enough as a default max */ 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 468 gpio->functions = devm_kzalloc(&pdev->dev, 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 469 npins * 4 * sizeof(*gpio->functions), 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 470 GFP_KERNEL); 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 471 if (!gpio->functions) 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 472 return -ENOMEM; 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 473 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 474 /* Create a list of uniquely named functions */ 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 475 for (i = 0; i < npins; i++) { 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 476 pin = &gpio->desc->pins[i]; 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 477 func = pin->functions; 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 478 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 479 while (func->name) { 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 480 axp20x_pinctrl_add_function(gpio, func->name); 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 481 func++; 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 482 } 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 483 } 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 484 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 @485 gpio->functions = krealloc(gpio->functions, 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 486 gpio->nfunctions * sizeof(*gpio->functions), 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 487 GFP_KERNEL); 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 488 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 489 for (i = 0; i < npins; i++) { 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 490 pin = &gpio->desc->pins[i]; 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 491 ret = axp20x_attach_group_function(pdev, pin); 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 492 if (ret) 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 493 return ret; 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 494 } 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 495 1e016076fb drivers/pinctrl/pinctrl-axp209.c Quentin Schulz 2017-09-26 496 return 0; f72f4b44df drivers/gpio/gpio-axp209.c Maxime Ripard 2016-07-20 497 } f72f4b44df drivers/gpio/gpio-axp209.c Maxime Ripard 2016-07-20 498 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation