From: Julia Lawall <julia.lawall@lip6.fr>
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)
Date: Fri, 29 Sep 2017 14:15:38 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.20.1709291413090.2776@hadrien> (raw)
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 <fengguang.wu@intel.com>
To: kbuild@01.org
Cc: Julia Lawall <julia.lawall@lip6.fr>
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
next reply other threads:[~2017-09-29 12:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-29 12:15 Julia Lawall [this message]
2017-09-29 12:37 ` [PATCH v2 02/10] pinctrl: axp209: add pinctrl features (fwd) Quentin Schulz
2017-09-29 12:50 ` Julia Lawall
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=alpine.DEB.2.20.1709291413090.2776@hadrien \
--to=julia.lawall@lip6.fr \
--cc=devicetree@vger.kernel.org \
--cc=kbuild-all@01.org \
--cc=lee.jones@linaro.org \
--cc=linus.walleij@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-gpio@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-sunxi@googlegroups.com \
--cc=linux@armlinux.org.uk \
--cc=mark.rutland@arm.com \
--cc=maxime.ripard@free-electrons.com \
--cc=quentin.schulz@free-electrons.com \
--cc=robh+dt@kernel.org \
--cc=thomas.petazzoni@free-electrons.com \
--cc=wens@csie.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox