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Groups > linux.kernel > #1613498 > unrolled thread
| Started by | Julia Lawall <julia.lawall@lip6.fr> |
|---|---|
| First post | 2017-03-30 23:50 +0200 |
| Last post | 2017-04-04 21:20 +0200 |
| Articles | 2 — 2 participants |
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Re: [PATCH v4 19/23] drivers/fsi: Add GPIO based FSI master (fwd) Julia Lawall <julia.lawall@lip6.fr> - 2017-03-30 23:50 +0200
Re: [PATCH v4 19/23] drivers/fsi: Add GPIO based FSI master (fwd) Christopher Bostic <cbostic@linux.vnet.ibm.com> - 2017-04-04 21:20 +0200
| From | Julia Lawall <julia.lawall@lip6.fr> |
|---|---|
| Date | 2017-03-30 23:50 +0200 |
| Subject | Re: [PATCH v4 19/23] drivers/fsi: Add GPIO based FSI master (fwd) |
| Message-ID | <tqQ78-42d-27@gated-at.bofh.it> |
Is master on line 514 allocated with kmalloc, or the devm call on line
522?
julia
---------- Forwarded message ----------
Date: Fri, 31 Mar 2017 00:15:09 +0800
From: kbuild test robot <fengguang.wu@intel.com>
To: kbuild@01.org
Cc: Julia Lawall <julia.lawall@lip6.fr>
Subject: Re: [PATCH v4 19/23] drivers/fsi: Add GPIO based FSI master
Hi Chris,
[auto build test WARNING on linus/master]
[also build test WARNING on v4.11-rc4 next-20170330]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Christopher-Bostic/FSI-device-driver-implementation/20170330-184914
:::::: branch date: 5 hours ago
:::::: commit date: 5 hours ago
>> drivers/fsi/fsi-master-gpio.c:514:1-6: WARNING: invalid free of devm_ allocated data
git remote add linux-review https://github.com/0day-ci/linux
git remote update linux-review
git checkout f4bd3b6a41c7a59e9ce2e65947a4d3dfc2ee4a29
vim +514 drivers/fsi/fsi-master-gpio.c
f4bd3b6a Chris Bostic 2017-03-29 498 {
f4bd3b6a Chris Bostic 2017-03-29 499 struct fsi_master_gpio *master = to_fsi_master_gpio(_master);
f4bd3b6a Chris Bostic 2017-03-29 500
f4bd3b6a Chris Bostic 2017-03-29 501 if (link != 0)
f4bd3b6a Chris Bostic 2017-03-29 502 return -ENODEV;
f4bd3b6a Chris Bostic 2017-03-29 503 if (master->gpio_enable)
f4bd3b6a Chris Bostic 2017-03-29 504 gpiod_set_value(master->gpio_enable, 1);
f4bd3b6a Chris Bostic 2017-03-29 505
f4bd3b6a Chris Bostic 2017-03-29 506 return 0;
f4bd3b6a Chris Bostic 2017-03-29 507 }
f4bd3b6a Chris Bostic 2017-03-29 508
f4bd3b6a Chris Bostic 2017-03-29 509 static void fsi_master_gpio_release(struct device *dev)
f4bd3b6a Chris Bostic 2017-03-29 510 {
f4bd3b6a Chris Bostic 2017-03-29 511 struct fsi_master_gpio *master = to_fsi_master_gpio(
f4bd3b6a Chris Bostic 2017-03-29 512 dev_to_fsi_master(dev));
f4bd3b6a Chris Bostic 2017-03-29 513
f4bd3b6a Chris Bostic 2017-03-29 @514 kfree(master);
f4bd3b6a Chris Bostic 2017-03-29 515 }
f4bd3b6a Chris Bostic 2017-03-29 516
f4bd3b6a Chris Bostic 2017-03-29 517 static int fsi_master_gpio_probe(struct platform_device *pdev)
f4bd3b6a Chris Bostic 2017-03-29 518 {
f4bd3b6a Chris Bostic 2017-03-29 519 struct fsi_master_gpio *master;
f4bd3b6a Chris Bostic 2017-03-29 520 struct gpio_desc *gpio;
f4bd3b6a Chris Bostic 2017-03-29 521
f4bd3b6a Chris Bostic 2017-03-29 522 master = devm_kzalloc(&pdev->dev, sizeof(*master), GFP_KERNEL);
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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| From | Christopher Bostic <cbostic@linux.vnet.ibm.com> |
|---|---|
| Date | 2017-04-04 21:20 +0200 |
| Message-ID | <tsC9I-G4-7@gated-at.bofh.it> |
| In reply to | #1613498 |
On 3/30/17 4:39 PM, Julia Lawall wrote:
> Is master on line 514 allocated with kmalloc, or the devm call on line
> 522?
Hi Julia,
Its allocated with the devm call on line 522. The kfree on line 514
wouldn't be necessary in that case - will remove.
Thanks for pointing that out.
Chris
> julia
>
> ---------- Forwarded message ----------
> Date: Fri, 31 Mar 2017 00:15:09 +0800
> From: kbuild test robot <fengguang.wu@intel.com>
> To: kbuild@01.org
> Cc: Julia Lawall <julia.lawall@lip6.fr>
> Subject: Re: [PATCH v4 19/23] drivers/fsi: Add GPIO based FSI master
>
> Hi Chris,
>
> [auto build test WARNING on linus/master]
> [also build test WARNING on v4.11-rc4 next-20170330]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
>
> url: https://github.com/0day-ci/linux/commits/Christopher-Bostic/FSI-device-driver-implementation/20170330-184914
> :::::: branch date: 5 hours ago
> :::::: commit date: 5 hours ago
>
>>> drivers/fsi/fsi-master-gpio.c:514:1-6: WARNING: invalid free of devm_ allocated data
> git remote add linux-review https://github.com/0day-ci/linux
> git remote update linux-review
> git checkout f4bd3b6a41c7a59e9ce2e65947a4d3dfc2ee4a29
> vim +514 drivers/fsi/fsi-master-gpio.c
>
> f4bd3b6a Chris Bostic 2017-03-29 498 {
> f4bd3b6a Chris Bostic 2017-03-29 499 struct fsi_master_gpio *master = to_fsi_master_gpio(_master);
> f4bd3b6a Chris Bostic 2017-03-29 500
> f4bd3b6a Chris Bostic 2017-03-29 501 if (link != 0)
> f4bd3b6a Chris Bostic 2017-03-29 502 return -ENODEV;
> f4bd3b6a Chris Bostic 2017-03-29 503 if (master->gpio_enable)
> f4bd3b6a Chris Bostic 2017-03-29 504 gpiod_set_value(master->gpio_enable, 1);
> f4bd3b6a Chris Bostic 2017-03-29 505
> f4bd3b6a Chris Bostic 2017-03-29 506 return 0;
> f4bd3b6a Chris Bostic 2017-03-29 507 }
> f4bd3b6a Chris Bostic 2017-03-29 508
> f4bd3b6a Chris Bostic 2017-03-29 509 static void fsi_master_gpio_release(struct device *dev)
> f4bd3b6a Chris Bostic 2017-03-29 510 {
> f4bd3b6a Chris Bostic 2017-03-29 511 struct fsi_master_gpio *master = to_fsi_master_gpio(
> f4bd3b6a Chris Bostic 2017-03-29 512 dev_to_fsi_master(dev));
> f4bd3b6a Chris Bostic 2017-03-29 513
> f4bd3b6a Chris Bostic 2017-03-29 @514 kfree(master);
> f4bd3b6a Chris Bostic 2017-03-29 515 }
> f4bd3b6a Chris Bostic 2017-03-29 516
> f4bd3b6a Chris Bostic 2017-03-29 517 static int fsi_master_gpio_probe(struct platform_device *pdev)
> f4bd3b6a Chris Bostic 2017-03-29 518 {
> f4bd3b6a Chris Bostic 2017-03-29 519 struct fsi_master_gpio *master;
> f4bd3b6a Chris Bostic 2017-03-29 520 struct gpio_desc *gpio;
> f4bd3b6a Chris Bostic 2017-03-29 521
> f4bd3b6a Chris Bostic 2017-03-29 522 master = devm_kzalloc(&pdev->dev, sizeof(*master), GFP_KERNEL);
>
> ---
> 0-DAY kernel test infrastructure Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all Intel Corporation
>
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