LinuxLists.cc - [PATCH] thermal/drivers/tsens: fix missing put

2021-04-04 04:36:30

Subject: [PATCH] thermal/drivers/tsens: fix missing put_device error

From: Guangqing Zhu <[email protected]>

Fixes coccicheck error:

drivers/thermal/qcom/tsens.c:759:4-10: ERROR: missing put_device; call
of_find_device_by_node on line 715, but without a corresponding object
release within this function.

Fixes: a7ff82976122 ("drivers: thermal: tsens: Merge tsens-common.c into
tsens.c")

Signed-off-by: Guangqing Zhu <[email protected]>
---
drivers/thermal/qcom/tsens.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c
index d8ce3a687b80..cc4c6a9853a4 100644
--- a/drivers/thermal/qcom/tsens.c
+++ b/drivers/thermal/qcom/tsens.c
@@ -755,9 +755,10 @@ int __init init_common(struct tsens_priv *priv)
for (i = VER_MAJOR; i <= VER_STEP; i++) {
priv->rf[i] = devm_regmap_field_alloc(dev, priv->srot_map,
priv->fields[i]);
- if (IS_ERR(priv->rf[i]))
- return PTR_ERR(priv->rf[i]);
- }
+ if (IS_ERR(priv->rf[i])) {
+ ret = PTR_ERR(priv->rf[i]);
+ goto err_put_device;
+ }
ret = regmap_field_read(priv->rf[VER_MINOR], &ver_minor);
if (ret)
goto err_put_device;
--
2.17.1

2021-04-04 05:59:38

by kernel test robot

[permalink] [raw]

Subject: Re: [PATCH] thermal/drivers/tsens: fix missing put_device error

Hi,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.12-rc5 next-20210401]
[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]

url: https://github.com/0day-ci/linux/commits/zhuguangqing83-gmail-com/thermal-drivers-tsens-fix-missing-put_device-error/20210404-123439
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 2023a53bdf41b7646b1d384b6816af06309f73a5
config: arm64-randconfig-r004-20210404 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/0day-ci/linux/commit/8c940b4ee5ee1d96be026eee71f0c682262f94e4
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review zhuguangqing83-gmail-com/thermal-drivers-tsens-fix-missing-put_device-error/20210404-123439
git checkout 8c940b4ee5ee1d96be026eee71f0c682262f94e4
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>

All error/warnings (new ones prefixed by >>):

drivers/thermal/qcom/tsens.c: In function 'init_common':
>> drivers/thermal/qcom/tsens.c:856:12: error: invalid storage class for function 'tsens_get_temp'
856 | static int tsens_get_temp(void *data, int *temp)
| ^~~~~~~~~~~~~~
>> drivers/thermal/qcom/tsens.c:856:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
856 | static int tsens_get_temp(void *data, int *temp)
| ^~~~~~
>> drivers/thermal/qcom/tsens.c:864:12: error: invalid storage class for function 'tsens_get_trend'
864 | static int tsens_get_trend(void *data, int trip, enum thermal_trend *trend)
| ^~~~~~~~~~~~~~~
>> drivers/thermal/qcom/tsens.c:875:28: error: invalid storage class for function 'tsens_suspend'
875 | static int __maybe_unused tsens_suspend(struct device *dev)
| ^~~~~~~~~~~~~
>> drivers/thermal/qcom/tsens.c:885:27: error: invalid storage class for function 'tsens_resume'
885 | static int __maybe_unused tsens_resume(struct device *dev)
| ^~~~~~~~~~~~
In file included from include/linux/device.h:25,
from include/linux/of_platform.h:9,
from drivers/thermal/qcom/tsens.c:14:
>> drivers/thermal/qcom/tsens.c:895:40: error: initializer element is not constant
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~~
include/linux/pm.h:306:13: note: in definition of macro 'SET_SYSTEM_SLEEP_PM_OPS'
306 | .suspend = suspend_fn, \
| ^~~~~~~~~~
drivers/thermal/qcom/tsens.c:895:8: note: in expansion of macro 'SIMPLE_DEV_PM_OPS'
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~~~~~~
drivers/thermal/qcom/tsens.c:895:40: note: (near initialization for 'tsens_pm_ops.suspend')
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~~
include/linux/pm.h:306:13: note: in definition of macro 'SET_SYSTEM_SLEEP_PM_OPS'
306 | .suspend = suspend_fn, \
| ^~~~~~~~~~
drivers/thermal/qcom/tsens.c:895:8: note: in expansion of macro 'SIMPLE_DEV_PM_OPS'
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~~~~~~
drivers/thermal/qcom/tsens.c:895:55: error: initializer element is not constant
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~
include/linux/pm.h:307:12: note: in definition of macro 'SET_SYSTEM_SLEEP_PM_OPS'
307 | .resume = resume_fn, \
| ^~~~~~~~~
drivers/thermal/qcom/tsens.c:895:8: note: in expansion of macro 'SIMPLE_DEV_PM_OPS'
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~~~~~~
drivers/thermal/qcom/tsens.c:895:55: note: (near initialization for 'tsens_pm_ops.resume')
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~
include/linux/pm.h:307:12: note: in definition of macro 'SET_SYSTEM_SLEEP_PM_OPS'
307 | .resume = resume_fn, \
| ^~~~~~~~~
drivers/thermal/qcom/tsens.c:895:8: note: in expansion of macro 'SIMPLE_DEV_PM_OPS'
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~~~~~~
>> drivers/thermal/qcom/tsens.c:895:40: error: initializer element is not constant
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~~
include/linux/pm.h:308:12: note: in definition of macro 'SET_SYSTEM_SLEEP_PM_OPS'
308 | .freeze = suspend_fn, \
| ^~~~~~~~~~
drivers/thermal/qcom/tsens.c:895:8: note: in expansion of macro 'SIMPLE_DEV_PM_OPS'
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~~~~~~
drivers/thermal/qcom/tsens.c:895:40: note: (near initialization for 'tsens_pm_ops.freeze')
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~~
include/linux/pm.h:308:12: note: in definition of macro 'SET_SYSTEM_SLEEP_PM_OPS'
308 | .freeze = suspend_fn, \
| ^~~~~~~~~~
drivers/thermal/qcom/tsens.c:895:8: note: in expansion of macro 'SIMPLE_DEV_PM_OPS'
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~~~~~~
drivers/thermal/qcom/tsens.c:895:55: error: initializer element is not constant
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~
include/linux/pm.h:309:10: note: in definition of macro 'SET_SYSTEM_SLEEP_PM_OPS'
309 | .thaw = resume_fn, \
| ^~~~~~~~~
drivers/thermal/qcom/tsens.c:895:8: note: in expansion of macro 'SIMPLE_DEV_PM_OPS'
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~~~~~~
drivers/thermal/qcom/tsens.c:895:55: note: (near initialization for 'tsens_pm_ops.thaw')
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~
include/linux/pm.h:309:10: note: in definition of macro 'SET_SYSTEM_SLEEP_PM_OPS'
309 | .thaw = resume_fn, \
| ^~~~~~~~~
drivers/thermal/qcom/tsens.c:895:8: note: in expansion of macro 'SIMPLE_DEV_PM_OPS'
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~~~~~~
>> drivers/thermal/qcom/tsens.c:895:40: error: initializer element is not constant
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~~
include/linux/pm.h:310:14: note: in definition of macro 'SET_SYSTEM_SLEEP_PM_OPS'
310 | .poweroff = suspend_fn, \
| ^~~~~~~~~~
drivers/thermal/qcom/tsens.c:895:8: note: in expansion of macro 'SIMPLE_DEV_PM_OPS'
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~~~~~~
drivers/thermal/qcom/tsens.c:895:40: note: (near initialization for 'tsens_pm_ops.poweroff')
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~~
include/linux/pm.h:310:14: note: in definition of macro 'SET_SYSTEM_SLEEP_PM_OPS'
310 | .poweroff = suspend_fn, \
| ^~~~~~~~~~
drivers/thermal/qcom/tsens.c:895:8: note: in expansion of macro 'SIMPLE_DEV_PM_OPS'
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~~~~~~
drivers/thermal/qcom/tsens.c:895:55: error: initializer element is not constant
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~
include/linux/pm.h:311:13: note: in definition of macro 'SET_SYSTEM_SLEEP_PM_OPS'
311 | .restore = resume_fn,
| ^~~~~~~~~
drivers/thermal/qcom/tsens.c:895:8: note: in expansion of macro 'SIMPLE_DEV_PM_OPS'
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~~~~~~
drivers/thermal/qcom/tsens.c:895:55: note: (near initialization for 'tsens_pm_ops.restore')
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~
include/linux/pm.h:311:13: note: in definition of macro 'SET_SYSTEM_SLEEP_PM_OPS'
311 | .restore = resume_fn,
| ^~~~~~~~~
drivers/thermal/qcom/tsens.c:895:8: note: in expansion of macro 'SIMPLE_DEV_PM_OPS'
895 | static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
| ^~~~~~~~~~~~~~~~~
drivers/thermal/qcom/tsens.c:925:14: error: initializer element is not constant
925 | .get_temp = tsens_get_temp,
| ^~~~~~~~~~~~~~
drivers/thermal/qcom/tsens.c:925:14: note: (near initialization for 'tsens_of_ops.get_temp')
drivers/thermal/qcom/tsens.c:926:15: error: initializer element is not constant
926 | .get_trend = tsens_get_trend,
| ^~~~~~~~~~~~~~~
drivers/thermal/qcom/tsens.c:926:15: note: (near initialization for 'tsens_of_ops.get_trend')
drivers/thermal/qcom/tsens.c:924:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
924 | static const struct thermal_zone_of_device_ops tsens_of_ops = {
| ^~~~~~
>> drivers/thermal/qcom/tsens.c:930:12: error: invalid storage class for function 'tsens_register_irq'
930 | static int tsens_register_irq(struct tsens_priv *priv, char *irqname,
| ^~~~~~~~~~~~~~~~~~
>> drivers/thermal/qcom/tsens.c:962:12: error: invalid storage class for function 'tsens_register'
962 | static int tsens_register(struct tsens_priv *priv)
| ^~~~~~~~~~~~~~
>> drivers/thermal/qcom/tsens.c:990:12: error: invalid storage class for function 'tsens_probe'
990 | static int tsens_probe(struct platform_device *pdev)
| ^~~~~~~~~~~
>> drivers/thermal/qcom/tsens.c:1064:12: error: invalid storage class for function 'tsens_remove'
1064 | static int tsens_remove(struct platform_device *pdev)
| ^~~~~~~~~~~~
drivers/thermal/qcom/tsens.c:1077:11: error: initializer element is not constant
1077 | .probe = tsens_probe,
| ^~~~~~~~~~~
drivers/thermal/qcom/tsens.c:1077:11: note: (near initialization for 'tsens_driver.probe')
drivers/thermal/qcom/tsens.c:1078:12: error: initializer element is not constant
1078 | .remove = tsens_remove,
| ^~~~~~~~~~~~
drivers/thermal/qcom/tsens.c:1078:12: note: (near initialization for 'tsens_driver.remove')
In file included from include/linux/device.h:32,
from include/linux/of_platform.h:9,
from drivers/thermal/qcom/tsens.c:14:
>> drivers/thermal/qcom/tsens.c:1085:24: error: invalid storage class for function 'tsens_driver_init'
1085 | module_platform_driver(tsens_driver);
| ^~~~~~~~~~~~
include/linux/device/driver.h:259:19: note: in definition of macro 'module_driver'
259 | static int __init __driver##_init(void) \
| ^~~~~~~~
drivers/thermal/qcom/tsens.c:1085:1: note: in expansion of macro 'module_platform_driver'
1085 | module_platform_driver(tsens_driver);
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from include/linux/export.h:43,
from include/linux/linkage.h:7,
from include/linux/fs.h:5,
from include/linux/debugfs.h:15,
from drivers/thermal/qcom/tsens.c:7:
>> include/linux/compiler.h:226:46: error: initializer element is not constant
226 | __UNIQUE_ID(__PASTE(__addressable_,sym)) = (void *)&sym;
| ^
include/linux/init.h:236:2: note: in expansion of macro '__ADDRESSABLE'
236 | __ADDRESSABLE(fn)
| ^~~~~~~~~~~~~
include/linux/init.h:241:2: note: in expansion of macro '__define_initcall_stub'
241 | __define_initcall_stub(__stub, fn) \
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/init.h:253:2: note: in expansion of macro '____define_initcall'
253 | ____define_initcall(fn, \
| ^~~~~~~~~~~~~~~~~~~
include/linux/init.h:259:2: note: in expansion of macro '__unique_initcall'
259 | __unique_initcall(fn, id, __sec, __initcall_id(fn))
| ^~~~~~~~~~~~~~~~~
include/linux/init.h:261:35: note: in expansion of macro '___define_initcall'
261 | #define __define_initcall(fn, id) ___define_initcall(fn, id, .initcall##id)
| ^~~~~~~~~~~~~~~~~~
include/linux/init.h:290:30: note: in expansion of macro '__define_initcall'
290 | #define device_initcall(fn) __define_initcall(fn, 6)
| ^~~~~~~~~~~~~~~~~
include/linux/init.h:295:24: note: in expansion of macro 'device_initcall'
295 | #define __initcall(fn) device_initcall(fn)
| ^~~~~~~~~~~~~~~
include/linux/module.h:86:24: note: in expansion of macro '__initcall'
86 | #define module_init(x) __initcall(x);
| ^~~~~~~~~~
include/linux/device/driver.h:263:1: note: in expansion of macro 'module_init'
263 | module_init(__driver##_init); \
| ^~~~~~~~~~~
include/linux/platform_device.h:257:2: note: in expansion of macro 'module_driver'
257 | module_driver(__platform_driver, platform_driver_register, \
| ^~~~~~~~~~~~~
drivers/thermal/qcom/tsens.c:1085:1: note: in expansion of macro 'module_platform_driver'
1085 | module_platform_driver(tsens_driver);
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from include/linux/device.h:32,
from include/linux/of_platform.h:9,
from drivers/thermal/qcom/tsens.c:14:
>> drivers/thermal/qcom/tsens.c:1085:24: error: invalid storage class for function 'tsens_driver_exit'
1085 | module_platform_driver(tsens_driver);
| ^~~~~~~~~~~~
include/linux/device/driver.h:264:20: note: in definition of macro 'module_driver'
264 | static void __exit __driver##_exit(void) \
| ^~~~~~~~
drivers/thermal/qcom/tsens.c:1085:1: note: in expansion of macro 'module_platform_driver'
1085 | module_platform_driver(tsens_driver);
| ^~~~~~~~~~~~~~~~~~~~~~
>> include/linux/device/driver.h:264:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
264 | static void __exit __driver##_exit(void) \
| ^~~~~~
include/linux/platform_device.h:257:2: note: in expansion of macro 'module_driver'
257 | module_driver(__platform_driver, platform_driver_register, \
| ^~~~~~~~~~~~~
drivers/thermal/qcom/tsens.c:1085:1: note: in expansion of macro 'module_platform_driver'
1085 | module_platform_driver(tsens_driver);
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from include/linux/printk.h:6,
from include/linux/kernel.h:16,
from include/linux/list.h:9,
from include/linux/wait.h:7,
from include/linux/wait_bit.h:8,
from include/linux/fs.h:6,
from include/linux/debugfs.h:15,
from drivers/thermal/qcom/tsens.c:7:
drivers/thermal/qcom/tsens.c:1085:24: error: initializer element is not constant
1085 | module_platform_driver(tsens_driver);
| ^~~~~~~~~~~~
include/linux/init.h:298:50: note: in definition of macro '__exitcall'
298 | static exitcall_t __exitcall_##fn __exit_call = fn
| ^~
include/linux/device/driver.h:268:1: note: in expansion of macro 'module_exit'
268 | module_exit(__driver##_exit);
| ^~~~~~~~~~~
include/linux/platform_device.h:257:2: note: in expansion of macro 'module_driver'
257 | module_driver(__platform_driver, platform_driver_register, \
| ^~~~~~~~~~~~~
drivers/thermal/qcom/tsens.c:1085:1: note: in expansion of macro 'module_platform_driver'
1085 | module_platform_driver(tsens_driver);
| ^~~~~~~~~~~~~~~~~~~~~~
In file included from include/linux/module.h:21,
from drivers/thermal/qcom/tsens.c:10:
>> include/linux/moduleparam.h:24:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
24 | static const char __UNIQUE_ID(name)[] \
| ^~~~~~
include/linux/module.h:160:32: note: in expansion of macro '__MODULE_INFO'
160 | #define MODULE_INFO(tag, info) __MODULE_INFO(tag, tag, info)
| ^~~~~~~~~~~~~
include/linux/module.h:177:21: note: in expansion of macro 'MODULE_INFO'
177 | #define MODULE_FILE MODULE_INFO(file, KBUILD_MODFILE);
| ^~~~~~~~~~~
include/linux/module.h:224:34: note: in expansion of macro 'MODULE_FILE'
224 | #define MODULE_LICENSE(_license) MODULE_FILE MODULE_INFO(license, _license)
| ^~~~~~~~~~~
drivers/thermal/qcom/tsens.c:1087:1: note: in expansion of macro 'MODULE_LICENSE'
1087 | MODULE_LICENSE("GPL v2");
| ^~~~~~~~~~~~~~
>> drivers/thermal/qcom/tsens.c:1089:1: error: expected declaration or statement at end of input
1089 | MODULE_ALIAS("platform:qcom-tsens");
| ^~~~~~~~~~~~
drivers/thermal/qcom/tsens.c:1089:1: error: control reaches end of non-void function [-Werror=return-type]
1089 | MODULE_ALIAS("platform:qcom-tsens");
| ^~~~~~~~~~~~
cc1: some warnings being treated as errors

vim +/tsens_get_temp +856 drivers/thermal/qcom/tsens.c

a7ff82976122eb Amit Kucheria 2020-04-29 855
9066073c6c2799 Rajendra Nayak 2016-05-05 @856 static int tsens_get_temp(void *data, int *temp)
9066073c6c2799 Rajendra Nayak 2016-05-05 857 {
8b71bce407b3f1 Amit Kucheria 2019-11-01 858 struct tsens_sensor *s = data;
69b628ac71f07d Amit Kucheria 2019-03-20 859 struct tsens_priv *priv = s->priv;
9066073c6c2799 Rajendra Nayak 2016-05-05 860
8b71bce407b3f1 Amit Kucheria 2019-11-01 861 return priv->ops->get_temp(s, temp);
9066073c6c2799 Rajendra Nayak 2016-05-05 862 }
9066073c6c2799 Rajendra Nayak 2016-05-05 863
2cbcd2eab01b28 Amit Kucheria 2019-03-20 @864 static int tsens_get_trend(void *data, int trip, enum thermal_trend *trend)
9066073c6c2799 Rajendra Nayak 2016-05-05 865 {
8b71bce407b3f1 Amit Kucheria 2019-11-01 866 struct tsens_sensor *s = data;
69b628ac71f07d Amit Kucheria 2019-03-20 867 struct tsens_priv *priv = s->priv;
9066073c6c2799 Rajendra Nayak 2016-05-05 868
69b628ac71f07d Amit Kucheria 2019-03-20 869 if (priv->ops->get_trend)
8b71bce407b3f1 Amit Kucheria 2019-11-01 870 return priv->ops->get_trend(s, trend);
9066073c6c2799 Rajendra Nayak 2016-05-05 871
9066073c6c2799 Rajendra Nayak 2016-05-05 872 return -ENOTSUPP;
9066073c6c2799 Rajendra Nayak 2016-05-05 873 }
9066073c6c2799 Rajendra Nayak 2016-05-05 874
5b97469a55872a Arnd Bergmann 2016-07-04 @875 static int __maybe_unused tsens_suspend(struct device *dev)
9066073c6c2799 Rajendra Nayak 2016-05-05 876 {
69b628ac71f07d Amit Kucheria 2019-03-20 877 struct tsens_priv *priv = dev_get_drvdata(dev);
9066073c6c2799 Rajendra Nayak 2016-05-05 878
69b628ac71f07d Amit Kucheria 2019-03-20 879 if (priv->ops && priv->ops->suspend)
69b628ac71f07d Amit Kucheria 2019-03-20 880 return priv->ops->suspend(priv);
9066073c6c2799 Rajendra Nayak 2016-05-05 881
9066073c6c2799 Rajendra Nayak 2016-05-05 882 return 0;
9066073c6c2799 Rajendra Nayak 2016-05-05 883 }
9066073c6c2799 Rajendra Nayak 2016-05-05 884
5b97469a55872a Arnd Bergmann 2016-07-04 @885 static int __maybe_unused tsens_resume(struct device *dev)
9066073c6c2799 Rajendra Nayak 2016-05-05 886 {
69b628ac71f07d Amit Kucheria 2019-03-20 887 struct tsens_priv *priv = dev_get_drvdata(dev);
9066073c6c2799 Rajendra Nayak 2016-05-05 888
69b628ac71f07d Amit Kucheria 2019-03-20 889 if (priv->ops && priv->ops->resume)
69b628ac71f07d Amit Kucheria 2019-03-20 890 return priv->ops->resume(priv);
9066073c6c2799 Rajendra Nayak 2016-05-05 891
9066073c6c2799 Rajendra Nayak 2016-05-05 892 return 0;
9066073c6c2799 Rajendra Nayak 2016-05-05 893 }
9066073c6c2799 Rajendra Nayak 2016-05-05 894
9066073c6c2799 Rajendra Nayak 2016-05-05 @895 static SIMPLE_DEV_PM_OPS(tsens_pm_ops, tsens_suspend, tsens_resume);
9066073c6c2799 Rajendra Nayak 2016-05-05 896
9066073c6c2799 Rajendra Nayak 2016-05-05 897 static const struct of_device_id tsens_table[] = {
9066073c6c2799 Rajendra Nayak 2016-05-05 898 {
9066073c6c2799 Rajendra Nayak 2016-05-05 899 .compatible = "qcom,msm8916-tsens",
840a5bd3ed3fdd Rajendra Nayak 2016-05-05 900 .data = &data_8916,
332bc8ebab2c0d Shawn Guo 2020-06-29 901 }, {
332bc8ebab2c0d Shawn Guo 2020-06-29 902 .compatible = "qcom,msm8939-tsens",
332bc8ebab2c0d Shawn Guo 2020-06-29 903 .data = &data_8939,
9066073c6c2799 Rajendra Nayak 2016-05-05 904 }, {
9066073c6c2799 Rajendra Nayak 2016-05-05 905 .compatible = "qcom,msm8974-tsens",
5e6703bd2d8354 Rajendra Nayak 2016-05-05 906 .data = &data_8974,
0e580290170dfb AngeloGioacchino Del Regno 2019-10-05 907 }, {
0e580290170dfb AngeloGioacchino Del Regno 2019-10-05 908 .compatible = "qcom,msm8976-tsens",
0e580290170dfb AngeloGioacchino Del Regno 2019-10-05 909 .data = &data_8976,
d059c739aacfbd Rajendra Nayak 2016-05-05 910 }, {
d059c739aacfbd Rajendra Nayak 2016-05-05 911 .compatible = "qcom,msm8996-tsens",
d059c739aacfbd Rajendra Nayak 2016-05-05 912 .data = &data_8996,
e8c24c6f5d1c7a Amit Kucheria 2019-03-20 913 }, {
e8c24c6f5d1c7a Amit Kucheria 2019-03-20 914 .compatible = "qcom,tsens-v1",
e8c24c6f5d1c7a Amit Kucheria 2019-03-20 915 .data = &data_tsens_v1,
191dc74bad60e1 Amit Kucheria 2018-07-18 916 }, {
191dc74bad60e1 Amit Kucheria 2018-07-18 917 .compatible = "qcom,tsens-v2",
191dc74bad60e1 Amit Kucheria 2018-07-18 918 .data = &data_tsens_v2,
9066073c6c2799 Rajendra Nayak 2016-05-05 919 },
9066073c6c2799 Rajendra Nayak 2016-05-05 920 {}
9066073c6c2799 Rajendra Nayak 2016-05-05 921 };
9066073c6c2799 Rajendra Nayak 2016-05-05 922 MODULE_DEVICE_TABLE(of, tsens_table);
9066073c6c2799 Rajendra Nayak 2016-05-05 923
9066073c6c2799 Rajendra Nayak 2016-05-05 @924 static const struct thermal_zone_of_device_ops tsens_of_ops = {
9066073c6c2799 Rajendra Nayak 2016-05-05 @925 .get_temp = tsens_get_temp,
9066073c6c2799 Rajendra Nayak 2016-05-05 @926 .get_trend = tsens_get_trend,
634e11d5b450a9 Amit Kucheria 2019-11-01 927 .set_trips = tsens_set_trips,
9066073c6c2799 Rajendra Nayak 2016-05-05 928 };
9066073c6c2799 Rajendra Nayak 2016-05-05 929
79125e03dbfc71 Amit Kucheria 2020-03-12 @930 static int tsens_register_irq(struct tsens_priv *priv, char *irqname,
79125e03dbfc71 Amit Kucheria 2020-03-12 931 irq_handler_t thread_fn)
9066073c6c2799 Rajendra Nayak 2016-05-05 932 {
634e11d5b450a9 Amit Kucheria 2019-11-01 933 struct platform_device *pdev;
79125e03dbfc71 Amit Kucheria 2020-03-12 934 int ret, irq;
634e11d5b450a9 Amit Kucheria 2019-11-01 935
634e11d5b450a9 Amit Kucheria 2019-11-01 936 pdev = of_find_device_by_node(priv->dev->of_node);
634e11d5b450a9 Amit Kucheria 2019-11-01 937 if (!pdev)
634e11d5b450a9 Amit Kucheria 2019-11-01 938 return -ENODEV;
634e11d5b450a9 Amit Kucheria 2019-11-01 939
79125e03dbfc71 Amit Kucheria 2020-03-12 940 irq = platform_get_irq_byname(pdev, irqname);
634e11d5b450a9 Amit Kucheria 2019-11-01 941 if (irq < 0) {
634e11d5b450a9 Amit Kucheria 2019-11-01 942 ret = irq;
344fa0bad69322 Amit Kucheria 2019-12-12 943 /* For old DTs with no IRQ defined */
344fa0bad69322 Amit Kucheria 2019-12-12 944 if (irq == -ENXIO)
344fa0bad69322 Amit Kucheria 2019-12-12 945 ret = 0;
79125e03dbfc71 Amit Kucheria 2020-03-12 946 } else {
634e11d5b450a9 Amit Kucheria 2019-11-01 947 ret = devm_request_threaded_irq(&pdev->dev, irq,
79125e03dbfc71 Amit Kucheria 2020-03-12 948 NULL, thread_fn,
8d3a6d4f433701 Amit Kucheria 2020-03-12 949 IRQF_ONESHOT,
634e11d5b450a9 Amit Kucheria 2019-11-01 950 dev_name(&pdev->dev), priv);
79125e03dbfc71 Amit Kucheria 2020-03-12 951 if (ret)
79125e03dbfc71 Amit Kucheria 2020-03-12 952 dev_err(&pdev->dev, "%s: failed to get irq\n",
79125e03dbfc71 Amit Kucheria 2020-03-12 953 __func__);
79125e03dbfc71 Amit Kucheria 2020-03-12 954 else
634e11d5b450a9 Amit Kucheria 2019-11-01 955 enable_irq_wake(irq);
79125e03dbfc71 Amit Kucheria 2020-03-12 956 }
634e11d5b450a9 Amit Kucheria 2019-11-01 957
634e11d5b450a9 Amit Kucheria 2019-11-01 958 put_device(&pdev->dev);
634e11d5b450a9 Amit Kucheria 2019-11-01 959 return ret;
9066073c6c2799 Rajendra Nayak 2016-05-05 960 }
9066073c6c2799 Rajendra Nayak 2016-05-05 961
79125e03dbfc71 Amit Kucheria 2020-03-12 @962 static int tsens_register(struct tsens_priv *priv)
79125e03dbfc71 Amit Kucheria 2020-03-12 963 {
79125e03dbfc71 Amit Kucheria 2020-03-12 964 int i, ret;
79125e03dbfc71 Amit Kucheria 2020-03-12 965 struct thermal_zone_device *tzd;
79125e03dbfc71 Amit Kucheria 2020-03-12 966
79125e03dbfc71 Amit Kucheria 2020-03-12 967 for (i = 0; i < priv->num_sensors; i++) {
79125e03dbfc71 Amit Kucheria 2020-03-12 968 priv->sensor[i].priv = priv;
79125e03dbfc71 Amit Kucheria 2020-03-12 969 tzd = devm_thermal_zone_of_sensor_register(priv->dev, priv->sensor[i].hw_id,
79125e03dbfc71 Amit Kucheria 2020-03-12 970 &priv->sensor[i],
79125e03dbfc71 Amit Kucheria 2020-03-12 971 &tsens_of_ops);
79125e03dbfc71 Amit Kucheria 2020-03-12 972 if (IS_ERR(tzd))
79125e03dbfc71 Amit Kucheria 2020-03-12 973 continue;
79125e03dbfc71 Amit Kucheria 2020-03-12 974 priv->sensor[i].tzd = tzd;
79125e03dbfc71 Amit Kucheria 2020-03-12 975 if (priv->ops->enable)
79125e03dbfc71 Amit Kucheria 2020-03-12 976 priv->ops->enable(priv, i);
79125e03dbfc71 Amit Kucheria 2020-03-12 977 }
79125e03dbfc71 Amit Kucheria 2020-03-12 978
79125e03dbfc71 Amit Kucheria 2020-03-12 979 ret = tsens_register_irq(priv, "uplow", tsens_irq_thread);
79125e03dbfc71 Amit Kucheria 2020-03-12 980 if (ret < 0)
79125e03dbfc71 Amit Kucheria 2020-03-12 981 return ret;
79125e03dbfc71 Amit Kucheria 2020-03-12 982
79125e03dbfc71 Amit Kucheria 2020-03-12 983 if (priv->feat->crit_int)
79125e03dbfc71 Amit Kucheria 2020-03-12 984 ret = tsens_register_irq(priv, "critical",
79125e03dbfc71 Amit Kucheria 2020-03-12 985 tsens_critical_irq_thread);
79125e03dbfc71 Amit Kucheria 2020-03-12 986
79125e03dbfc71 Amit Kucheria 2020-03-12 987 return ret;
79125e03dbfc71 Amit Kucheria 2020-03-12 988 }
79125e03dbfc71 Amit Kucheria 2020-03-12 989
9066073c6c2799 Rajendra Nayak 2016-05-05 @990 static int tsens_probe(struct platform_device *pdev)
9066073c6c2799 Rajendra Nayak 2016-05-05 991 {
9066073c6c2799 Rajendra Nayak 2016-05-05 992 int ret, i;
9066073c6c2799 Rajendra Nayak 2016-05-05 993 struct device *dev;
9066073c6c2799 Rajendra Nayak 2016-05-05 994 struct device_node *np;
69b628ac71f07d Amit Kucheria 2019-03-20 995 struct tsens_priv *priv;
3c040ce087a2e8 Amit Kucheria 2019-03-20 996 const struct tsens_plat_data *data;
9066073c6c2799 Rajendra Nayak 2016-05-05 997 const struct of_device_id *id;
6d7c70d1cd6526 Bjorn Andersson 2018-05-07 998 u32 num_sensors;
9066073c6c2799 Rajendra Nayak 2016-05-05 999
9066073c6c2799 Rajendra Nayak 2016-05-05 1000 if (pdev->dev.of_node)
9066073c6c2799 Rajendra Nayak 2016-05-05 1001 dev = &pdev->dev;
9066073c6c2799 Rajendra Nayak 2016-05-05 1002 else
9066073c6c2799 Rajendra Nayak 2016-05-05 1003 dev = pdev->dev.parent;
9066073c6c2799 Rajendra Nayak 2016-05-05 1004
9066073c6c2799 Rajendra Nayak 2016-05-05 1005 np = dev->of_node;
9066073c6c2799 Rajendra Nayak 2016-05-05 1006
9066073c6c2799 Rajendra Nayak 2016-05-05 1007 id = of_match_node(tsens_table, np);
20d4fd84bf524a Rajendra Nayak 2016-05-05 1008 if (id)
9066073c6c2799 Rajendra Nayak 2016-05-05 1009 data = id->data;
20d4fd84bf524a Rajendra Nayak 2016-05-05 1010 else
20d4fd84bf524a Rajendra Nayak 2016-05-05 1011 data = &data_8960;
9066073c6c2799 Rajendra Nayak 2016-05-05 1012
6d7c70d1cd6526 Bjorn Andersson 2018-05-07 1013 num_sensors = data->num_sensors;
6d7c70d1cd6526 Bjorn Andersson 2018-05-07 1014
6d7c70d1cd6526 Bjorn Andersson 2018-05-07 1015 if (np)
6d7c70d1cd6526 Bjorn Andersson 2018-05-07 1016 of_property_read_u32(np, "#qcom,sensors", &num_sensors);
6d7c70d1cd6526 Bjorn Andersson 2018-05-07 1017
6d7c70d1cd6526 Bjorn Andersson 2018-05-07 1018 if (num_sensors <= 0) {
3795ad5e266908 Amit Kucheria 2019-11-01 1019 dev_err(dev, "%s: invalid number of sensors\n", __func__);
9066073c6c2799 Rajendra Nayak 2016-05-05 1020 return -EINVAL;
9066073c6c2799 Rajendra Nayak 2016-05-05 1021 }
9066073c6c2799 Rajendra Nayak 2016-05-05 1022
69b628ac71f07d Amit Kucheria 2019-03-20 1023 priv = devm_kzalloc(dev,
69b628ac71f07d Amit Kucheria 2019-03-20 1024 struct_size(priv, sensor, num_sensors),
0ed2dd03b94b7b Kees Cook 2018-05-08 1025 GFP_KERNEL);
69b628ac71f07d Amit Kucheria 2019-03-20 1026 if (!priv)
9066073c6c2799 Rajendra Nayak 2016-05-05 1027 return -ENOMEM;
9066073c6c2799 Rajendra Nayak 2016-05-05 1028
69b628ac71f07d Amit Kucheria 2019-03-20 1029 priv->dev = dev;
69b628ac71f07d Amit Kucheria 2019-03-20 1030 priv->num_sensors = num_sensors;
69b628ac71f07d Amit Kucheria 2019-03-20 1031 priv->ops = data->ops;
69b628ac71f07d Amit Kucheria 2019-03-20 1032 for (i = 0; i < priv->num_sensors; i++) {
9066073c6c2799 Rajendra Nayak 2016-05-05 1033 if (data->hw_ids)
69b628ac71f07d Amit Kucheria 2019-03-20 1034 priv->sensor[i].hw_id = data->hw_ids[i];
9066073c6c2799 Rajendra Nayak 2016-05-05 1035 else
69b628ac71f07d Amit Kucheria 2019-03-20 1036 priv->sensor[i].hw_id = i;
9066073c6c2799 Rajendra Nayak 2016-05-05 1037 }
c19970548edc35 Amit Kucheria 2019-03-20 1038 priv->feat = data->feat;
c19970548edc35 Amit Kucheria 2019-03-20 1039 priv->fields = data->fields;
9066073c6c2799 Rajendra Nayak 2016-05-05 1040
0e9c0bc7308240 Amit Kucheria 2019-11-01 1041 platform_set_drvdata(pdev, priv);
0e9c0bc7308240 Amit Kucheria 2019-11-01 1042
69b628ac71f07d Amit Kucheria 2019-03-20 1043 if (!priv->ops || !priv->ops->init || !priv->ops->get_temp)
9066073c6c2799 Rajendra Nayak 2016-05-05 1044 return -EINVAL;
9066073c6c2799 Rajendra Nayak 2016-05-05 1045
69b628ac71f07d Amit Kucheria 2019-03-20 1046 ret = priv->ops->init(priv);
9066073c6c2799 Rajendra Nayak 2016-05-05 1047 if (ret < 0) {
3795ad5e266908 Amit Kucheria 2019-11-01 1048 dev_err(dev, "%s: init failed\n", __func__);
9066073c6c2799 Rajendra Nayak 2016-05-05 1049 return ret;
9066073c6c2799 Rajendra Nayak 2016-05-05 1050 }
9066073c6c2799 Rajendra Nayak 2016-05-05 1051
69b628ac71f07d Amit Kucheria 2019-03-20 1052 if (priv->ops->calibrate) {
69b628ac71f07d Amit Kucheria 2019-03-20 1053 ret = priv->ops->calibrate(priv);
9066073c6c2799 Rajendra Nayak 2016-05-05 1054 if (ret < 0) {
fc7d18cf6a923c Amit Kucheria 2019-03-20 1055 if (ret != -EPROBE_DEFER)
3795ad5e266908 Amit Kucheria 2019-11-01 1056 dev_err(dev, "%s: calibration failed\n", __func__);
9066073c6c2799 Rajendra Nayak 2016-05-05 1057 return ret;
9066073c6c2799 Rajendra Nayak 2016-05-05 1058 }
9066073c6c2799 Rajendra Nayak 2016-05-05 1059 }
9066073c6c2799 Rajendra Nayak 2016-05-05 1060
0e9c0bc7308240 Amit Kucheria 2019-11-01 1061 return tsens_register(priv);
9066073c6c2799 Rajendra Nayak 2016-05-05 1062 }
9066073c6c2799 Rajendra Nayak 2016-05-05 1063

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]

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2021-04-04 06:09:38

by kernel test robot

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Subject: Re: [PATCH] thermal/drivers/tsens: fix missing put_device error

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2021-04-16 10:13:18

by Krzysztof Kozlowski

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Subject: Re: [PATCH] thermal/drivers/tsens: fix missing put_device error

On Sun, 4 Apr 2021 at 06:34, <[email protected]> wrote:
>
> From: Guangqing Zhu <[email protected]>
>
> Fixes coccicheck error:
>
> drivers/thermal/qcom/tsens.c:759:4-10: ERROR: missing put_device; call
> of_find_device_by_node on line 715, but without a corresponding object
> release within this function.
>
> Fixes: a7ff82976122 ("drivers: thermal: tsens: Merge tsens-common.c into
> tsens.c")
>
> Signed-off-by: Guangqing Zhu <[email protected]>
> ---
> drivers/thermal/qcom/tsens.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c
> index d8ce3a687b80..cc4c6a9853a4 100644
> --- a/drivers/thermal/qcom/tsens.c
> +++ b/drivers/thermal/qcom/tsens.c
> @@ -755,9 +755,10 @@ int __init init_common(struct tsens_priv *priv)
> for (i = VER_MAJOR; i <= VER_STEP; i++) {
> priv->rf[i] = devm_regmap_field_alloc(dev, priv->srot_map,
> priv->fields[i]);
> - if (IS_ERR(priv->rf[i]))
> - return PTR_ERR(priv->rf[i]);
> - }
> + if (IS_ERR(priv->rf[i])) {
> + ret = PTR_ERR(priv->rf[i]);
> + goto err_put_device;
> + }

As kbuild robot pointed out - this does not even compile. Please at
least build all your patches before sending.

Best regards,
Krzysztof