Re: [PATCH 20/22] Input: regulator-haptic - use guard notation when acquiring mutex
From: kernel test robot
Date: Fri Sep 06 2024 - 23:41:27 EST
Hi Dmitry,
kernel test robot noticed the following build warnings:
[auto build test WARNING on dtor-input/next]
[also build test WARNING on dtor-input/for-linus hid/for-next linus/master v6.11-rc6 next-20240906]
[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/Dmitry-Torokhov/Input-ad714x-use-guard-notation-when-acquiring-mutex/20240905-085752
base: https://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git next
patch link: https://lore.kernel.org/r/20240904044922.1049488-1-dmitry.torokhov%40gmail.com
patch subject: [PATCH 20/22] Input: regulator-haptic - use guard notation when acquiring mutex
config: x86_64-buildonly-randconfig-001-20240907 (https://download.01.org/0day-ci/archive/20240907/202409071004.IhekZKbM-lkp@xxxxxxxxx/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240907/202409071004.IhekZKbM-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202409071004.IhekZKbM-lkp@xxxxxxxxx/
All warnings (new ones prefixed by >>):
drivers/input/misc/regulator-haptic.c: In function 'regulator_haptic_suspend':
>> drivers/input/misc/regulator-haptic.c:206:13: warning: unused variable 'error' [-Wunused-variable]
206 | int error;
| ^~~~~
vim +/error +206 drivers/input/misc/regulator-haptic.c
d64cb71bede87d Jaewon Kim 2014-12-17 201
1a3e6c1ee47d00 Jonathan Cameron 2023-01-02 202 static int regulator_haptic_suspend(struct device *dev)
d64cb71bede87d Jaewon Kim 2014-12-17 203 {
d64cb71bede87d Jaewon Kim 2014-12-17 204 struct platform_device *pdev = to_platform_device(dev);
d64cb71bede87d Jaewon Kim 2014-12-17 205 struct regulator_haptic *haptic = platform_get_drvdata(pdev);
d64cb71bede87d Jaewon Kim 2014-12-17 @206 int error;
d64cb71bede87d Jaewon Kim 2014-12-17 207
aaa0758ff6b5c4 Dmitry Torokhov 2024-09-03 208 scoped_guard(mutex_intr, &haptic->mutex) {
d64cb71bede87d Jaewon Kim 2014-12-17 209 regulator_haptic_set_voltage(haptic, 0);
d64cb71bede87d Jaewon Kim 2014-12-17 210 haptic->suspended = true;
d64cb71bede87d Jaewon Kim 2014-12-17 211
d64cb71bede87d Jaewon Kim 2014-12-17 212 return 0;
d64cb71bede87d Jaewon Kim 2014-12-17 213 }
d64cb71bede87d Jaewon Kim 2014-12-17 214
aaa0758ff6b5c4 Dmitry Torokhov 2024-09-03 215 return -EINTR;
aaa0758ff6b5c4 Dmitry Torokhov 2024-09-03 216 }
aaa0758ff6b5c4 Dmitry Torokhov 2024-09-03 217
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