Re: [PATCH] hwspinlock: add a check of devm_regmap_field_alloc in qcom_hwspinlock_probe

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Hi Kang,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v6.2]
[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/Kang-Chen/hwspinlock-add-a-check-of-devm_regmap_field_alloc-in-qcom_hwspinlock_probe/20230226-224824
patch link:    https://lore.kernel.org/r/20230226144545.4187442-1-void0red%40gmail.com
patch subject: [PATCH] hwspinlock: add a check of devm_regmap_field_alloc in qcom_hwspinlock_probe
config: arm-randconfig-r046-20230226 (https://download.01.org/0day-ci/archive/20230227/202302270016.oJqq1tKy-lkp@xxxxxxxxx/config)
compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0
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/intel-lab-lkp/linux/commit/b5a6ded03f6367c5e698c758864f3e569f1f762c
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Kang-Chen/hwspinlock-add-a-check-of-devm_regmap_field_alloc-in-qcom_hwspinlock_probe/20230226-224824
        git checkout b5a6ded03f6367c5e698c758864f3e569f1f762c
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/hwspinlock/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202302270016.oJqq1tKy-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   drivers/hwspinlock/qcom_hwspinlock.c: In function 'qcom_hwspinlock_probe':
>> drivers/hwspinlock/qcom_hwspinlock.c:200:47: error: expected ')' before 'return'
     200 |                 if (IS_ERR(bank->lock[i].priv)
         |                    ~                          ^
         |                                               )
     201 |                         return -ENOMEM;
         |                         ~~~~~~                 
>> drivers/hwspinlock/qcom_hwspinlock.c:202:9: error: expected expression before '}' token
     202 |         }
         |         ^


vim +200 drivers/hwspinlock/qcom_hwspinlock.c

   168	
   169	static int qcom_hwspinlock_probe(struct platform_device *pdev)
   170	{
   171		struct hwspinlock_device *bank;
   172		struct reg_field field;
   173		struct regmap *regmap;
   174		size_t array_size;
   175		u32 stride;
   176		u32 base;
   177		int i;
   178	
   179		regmap = qcom_hwspinlock_probe_syscon(pdev, &base, &stride);
   180		if (IS_ERR(regmap) && PTR_ERR(regmap) == -ENODEV)
   181			regmap = qcom_hwspinlock_probe_mmio(pdev, &base, &stride);
   182	
   183		if (IS_ERR(regmap))
   184			return PTR_ERR(regmap);
   185	
   186		array_size = QCOM_MUTEX_NUM_LOCKS * sizeof(struct hwspinlock);
   187		bank = devm_kzalloc(&pdev->dev, sizeof(*bank) + array_size, GFP_KERNEL);
   188		if (!bank)
   189			return -ENOMEM;
   190	
   191		platform_set_drvdata(pdev, bank);
   192	
   193		for (i = 0; i < QCOM_MUTEX_NUM_LOCKS; i++) {
   194			field.reg = base + i * stride;
   195			field.lsb = 0;
   196			field.msb = 31;
   197	
   198			bank->lock[i].priv = devm_regmap_field_alloc(&pdev->dev,
   199								     regmap, field);
 > 200			if (IS_ERR(bank->lock[i].priv)
   201				return -ENOMEM;
 > 202		}
   203	
   204		return devm_hwspin_lock_register(&pdev->dev, bank, &qcom_hwspinlock_ops,
   205						 0, QCOM_MUTEX_NUM_LOCKS);
   206	}
   207	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests



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