From: kernel test robot <lkp@intel.com>
To: Ma Ke <make24@iscas.ac.cn>,
syniurge@gmail.com, shyam-sundar.s-k@amd.com,
andi.shyti@kernel.org, wsa@kernel.org
Cc: oe-kbuild-all@lists.linux.dev, linux-i2c@vger.kernel.org,
linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
Ma Ke <make24@iscas.ac.cn>,
stable@vger.kernel.org
Subject: Re: [PATCH] i2c: fix reference leak in MP2 PCI device
Date: Sun, 28 Sep 2025 11:29:32 +0800 [thread overview]
Message-ID: <202509281110.ACsS1CDz-lkp@intel.com> (raw)
In-Reply-To: <20250927105729.19164-1-make24@iscas.ac.cn>
Hi Ma,
kernel test robot noticed the following build warnings:
[auto build test WARNING on andi-shyti/i2c/i2c-host]
[also build test WARNING on linus/master v6.17-rc7 next-20250926]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Ma-Ke/i2c-fix-reference-leak-in-MP2-PCI-device/20250927-190047
base: https://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux.git i2c/i2c-host
patch link: https://lore.kernel.org/r/20250927105729.19164-1-make24%40iscas.ac.cn
patch subject: [PATCH] i2c: fix reference leak in MP2 PCI device
config: i386-randconfig-013-20250928 (https://download.01.org/0day-ci/archive/20250928/202509281110.ACsS1CDz-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250928/202509281110.ACsS1CDz-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202509281110.ACsS1CDz-lkp@intel.com/
All warnings (new ones prefixed by >>):
drivers/i2c/busses/i2c-amd-mp2-pci.c: In function 'amd_mp2_find_device':
drivers/i2c/busses/i2c-amd-mp2-pci.c:467:9: error: 'mp2_dev' undeclared (first use in this function)
467 | mp2_dev = (struct amd_mp2_dev *)pci_get_drvdata(pci_dev);
| ^~~~~~~
drivers/i2c/busses/i2c-amd-mp2-pci.c:467:9: note: each undeclared identifier is reported only once for each function it appears in
>> drivers/i2c/busses/i2c-amd-mp2-pci.c:470:1: warning: control reaches end of non-void function [-Wreturn-type]
470 | }
| ^
vim +470 drivers/i2c/busses/i2c-amd-mp2-pci.c
529766e0a01144 Elie Morisse 2019-03-05 456
529766e0a01144 Elie Morisse 2019-03-05 457 struct amd_mp2_dev *amd_mp2_find_device(void)
529766e0a01144 Elie Morisse 2019-03-05 458 {
529766e0a01144 Elie Morisse 2019-03-05 459 struct device *dev;
529766e0a01144 Elie Morisse 2019-03-05 460 struct pci_dev *pci_dev;
529766e0a01144 Elie Morisse 2019-03-05 461
6bf85ba9e55f65 Suzuki K Poulose 2019-07-23 462 dev = driver_find_next_device(&amd_mp2_pci_driver.driver, NULL);
529766e0a01144 Elie Morisse 2019-03-05 463 if (!dev)
529766e0a01144 Elie Morisse 2019-03-05 464 return NULL;
529766e0a01144 Elie Morisse 2019-03-05 465
529766e0a01144 Elie Morisse 2019-03-05 466 pci_dev = to_pci_dev(dev);
10a231ddf6f43e Ma Ke 2025-09-27 467 mp2_dev = (struct amd_mp2_dev *)pci_get_drvdata(pci_dev);
10a231ddf6f43e Ma Ke 2025-09-27 468 put_device(dev);
10a231ddf6f43e Ma Ke 2025-09-27 469 return mp2_dev;
529766e0a01144 Elie Morisse 2019-03-05 @470 }
529766e0a01144 Elie Morisse 2019-03-05 471 EXPORT_SYMBOL_GPL(amd_mp2_find_device);
529766e0a01144 Elie Morisse 2019-03-05 472
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next prev parent reply other threads:[~2025-09-28 3:29 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-27 10:57 [PATCH] i2c: fix reference leak in MP2 PCI device Ma Ke
2025-09-27 12:56 ` Markus Elfring
2025-09-27 18:08 ` Greg KH
2025-09-28 3:29 ` kernel test robot [this message]
2025-09-28 5:34 ` kernel test robot
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=202509281110.ACsS1CDz-lkp@intel.com \
--to=lkp@intel.com \
--cc=akpm@linux-foundation.org \
--cc=andi.shyti@kernel.org \
--cc=linux-i2c@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=make24@iscas.ac.cn \
--cc=oe-kbuild-all@lists.linux.dev \
--cc=shyam-sundar.s-k@amd.com \
--cc=stable@vger.kernel.org \
--cc=syniurge@gmail.com \
--cc=wsa@kernel.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.