Re: [PATCH v2] iio: temperature: tsys02d: Fix state desynchronization on resolution write error
From: kernel test robot
Date: Fri Sep 18 2026 - 08:53:32 EST
Hi Salah,
kernel test robot noticed the following build errors:
[auto build test ERROR on jic23-iio/togreg]
[also build test ERROR on linus/master v7.3-rc3 next-20260916]
[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/Salah-Triki/iio-temperature-tsys02d-Fix-state-desynchronization-on-resolution-write-error/20260917-101608
base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg
patch link: https://lore.kernel.org/r/20260917091609.626043-1-salah.triki%40gmail.com
patch subject: [PATCH v2] iio: temperature: tsys02d: Fix state desynchronization on resolution write error
config: riscv-randconfig-1000-20260918 (https://download.01.org/0day-ci/archive/20260918/202609182052.HpuVt6ba-lkp@xxxxxxxxx/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260918/202609182052.HpuVt6ba-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/202609182052.HpuVt6ba-lkp@xxxxxxxxx/
All errors (new ones prefixed by >>):
>> drivers/iio/temperature/tsys02d.c:89:2: error: cannot jump from switch statement to this case label
89 | default:
| ^
drivers/iio/temperature/tsys02d.c:82:3: note: jump bypasses initialization of variable with __attribute__((cleanup))
82 | guard(mutex)(&dev_data->lock);
| ^
include/linux/cleanup.h:423:2: note: expanded from macro 'guard'
423 | CLASS(_name, __UNIQUE_ID(guard))
| ^
include/linux/cleanup.h:303:3: note: expanded from macro 'CLASS'
303 | class_##_name##_constructor
| ^
<scratch space>:93:1: note: expanded from here
93 | class_mutex_constructor
| ^
note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
include/linux/compiler_types.h:16:23: note: expanded from macro '__PASTE'
16 | #define __PASTE(a, b) ___PASTE(a, b)
| ^
include/linux/compiler_types.h:15:24: note: expanded from macro '___PASTE'
15 | #define ___PASTE(a, b) a##b
| ^
<scratch space>:99:1: note: expanded from here
99 | __UNIQUE_ID_unlock_472
| ^
drivers/iio/temperature/tsys02d.c:82:3: note: jump bypasses initialization of variable with __attribute__((cleanup))
include/linux/cleanup.h:423:15: note: expanded from macro 'guard'
423 | CLASS(_name, __UNIQUE_ID(guard))
| ^
include/linux/compiler.h:165:2: note: expanded from macro '__UNIQUE_ID'
165 | __PASTE(__UNIQUE_ID_, \
| ^
include/linux/compiler_types.h:16:23: note: expanded from macro '__PASTE'
16 | #define __PASTE(a, b) ___PASTE(a, b)
| ^
include/linux/compiler_types.h:15:24: note: expanded from macro '___PASTE'
15 | #define ___PASTE(a, b) a##b
| ^
<scratch space>:87:1: note: expanded from here
87 | __UNIQUE_ID_guard_471
| ^
1 error generated.
vim +89 drivers/iio/temperature/tsys02d.c
53bf4d067d5115 Ludovic Tancerel 2015-10-01 65
53bf4d067d5115 Ludovic Tancerel 2015-10-01 66 static int tsys02d_write_raw(struct iio_dev *indio_dev,
53bf4d067d5115 Ludovic Tancerel 2015-10-01 67 struct iio_chan_spec const *chan,
53bf4d067d5115 Ludovic Tancerel 2015-10-01 68 int val, int val2, long mask)
53bf4d067d5115 Ludovic Tancerel 2015-10-01 69 {
53bf4d067d5115 Ludovic Tancerel 2015-10-01 70 struct ms_ht_dev *dev_data = iio_priv(indio_dev);
53bf4d067d5115 Ludovic Tancerel 2015-10-01 71 int i, ret;
53bf4d067d5115 Ludovic Tancerel 2015-10-01 72
53bf4d067d5115 Ludovic Tancerel 2015-10-01 73 switch (mask) {
53bf4d067d5115 Ludovic Tancerel 2015-10-01 74 case IIO_CHAN_INFO_SAMP_FREQ:
53bf4d067d5115 Ludovic Tancerel 2015-10-01 75 i = ARRAY_SIZE(tsys02d_samp_freq);
53bf4d067d5115 Ludovic Tancerel 2015-10-01 76 while (i-- > 0)
53bf4d067d5115 Ludovic Tancerel 2015-10-01 77 if (val == tsys02d_samp_freq[i])
53bf4d067d5115 Ludovic Tancerel 2015-10-01 78 break;
53bf4d067d5115 Ludovic Tancerel 2015-10-01 79 if (i < 0)
53bf4d067d5115 Ludovic Tancerel 2015-10-01 80 return -EINVAL;
53bf4d067d5115 Ludovic Tancerel 2015-10-01 81
3c8dd88f5e71a2 Salah Triki 2026-09-17 82 guard(mutex)(&dev_data->lock);
3c8dd88f5e71a2 Salah Triki 2026-09-17 83
3c8dd88f5e71a2 Salah Triki 2026-09-17 84 ret = ms_sensors_write_resolution(dev_data, i);
3c8dd88f5e71a2 Salah Triki 2026-09-17 85 if (ret)
53bf4d067d5115 Ludovic Tancerel 2015-10-01 86 return ret;
3c8dd88f5e71a2 Salah Triki 2026-09-17 87
3c8dd88f5e71a2 Salah Triki 2026-09-17 88 dev_data->res_index = i;
53bf4d067d5115 Ludovic Tancerel 2015-10-01 @89 default:
53bf4d067d5115 Ludovic Tancerel 2015-10-01 90 return -EINVAL;
53bf4d067d5115 Ludovic Tancerel 2015-10-01 91 }
53bf4d067d5115 Ludovic Tancerel 2015-10-01 92 }
53bf4d067d5115 Ludovic Tancerel 2015-10-01 93
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