drivers/net/wwan/t7xx/t7xx_pci.c:124:15: warning: Uninitialized variable: entity->id [uninitvar]

[kernel test robot <lkp@intel.com>]

:::::: 
:::::: Manual check reason: "low confidence static check warning: drivers/net/wwan/t7xx/t7xx_pci.c:124:15: warning: Uninitialized variable: entity->id [uninitvar]"
:::::: 

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: linux-kernel@vger.kernel.org
TO: Haijun Liu <haijun.liu@mediatek.com>
CC: Chandrashekar Devegowda <chandrashekar.devegowda@intel.com>
CC: Ricardo Martinez <ricardo.martinez@linux.intel.com>
CC: "Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   5dc4c995db9eb45f6373a956eb1f69460e69e6d4
commit: 46e8f49ed7b3063f51e28f3ea2084b3da29c1503 net: wwan: t7xx: Introduce power management
date:   8 months ago
:::::: branch date: 20 hours ago
:::::: commit date: 8 months ago
compiler: csky-linux-gcc (GCC) 12.1.0
reproduce (cppcheck warning):
        # apt-get install cppcheck
        git checkout 46e8f49ed7b3063f51e28f3ea2084b3da29c1503
        cppcheck --quiet --enable=style,performance,portability --template=gcc FILE

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>


cppcheck possible warnings: (new ones prefixed by >>, may not real problems)

>> drivers/net/wwan/t7xx/t7xx_pci.c:124:15: warning: Uninitialized variable: entity->id [uninitvar]
     if (entity->id == pm_entity->id) {
                 ^
   drivers/net/wwan/t7xx/t7xx_pci.c:141:15: warning: Uninitialized variable: entity->id [uninitvar]
     if (entity->id == pm_entity->id) {
                 ^
>> drivers/net/wwan/t7xx/t7xx_pci.c:382:15: warning: Uninitialized variable: entity->resume_early [uninitvar]
     if (entity->resume_early)
                 ^
   drivers/net/wwan/t7xx/t7xx_pci.c:309:42: note: Assuming condition is false
    if (atomic_read(&t7xx_dev->md_pm_state) <= MTK_PM_INIT) {
                                            ^
   drivers/net/wwan/t7xx/t7xx_pci.c:382:15: note: Uninitialized variable: entity->resume_early
     if (entity->resume_early)
                 ^

vim +124 drivers/net/wwan/t7xx/t7xx_pci.c

46e8f49ed7b306 Haijun Liu 2022-05-06  117  
46e8f49ed7b306 Haijun Liu 2022-05-06  118  int t7xx_pci_pm_entity_register(struct t7xx_pci_dev *t7xx_dev, struct md_pm_entity *pm_entity)
46e8f49ed7b306 Haijun Liu 2022-05-06  119  {
46e8f49ed7b306 Haijun Liu 2022-05-06  120  	struct md_pm_entity *entity;
46e8f49ed7b306 Haijun Liu 2022-05-06  121  
46e8f49ed7b306 Haijun Liu 2022-05-06  122  	mutex_lock(&t7xx_dev->md_pm_entity_mtx);
46e8f49ed7b306 Haijun Liu 2022-05-06  123  	list_for_each_entry(entity, &t7xx_dev->md_pm_entities, entity) {
46e8f49ed7b306 Haijun Liu 2022-05-06 @124  		if (entity->id == pm_entity->id) {
46e8f49ed7b306 Haijun Liu 2022-05-06  125  			mutex_unlock(&t7xx_dev->md_pm_entity_mtx);
46e8f49ed7b306 Haijun Liu 2022-05-06  126  			return -EEXIST;
46e8f49ed7b306 Haijun Liu 2022-05-06  127  		}
46e8f49ed7b306 Haijun Liu 2022-05-06  128  	}
46e8f49ed7b306 Haijun Liu 2022-05-06  129  
46e8f49ed7b306 Haijun Liu 2022-05-06  130  	list_add_tail(&pm_entity->entity, &t7xx_dev->md_pm_entities);
46e8f49ed7b306 Haijun Liu 2022-05-06  131  	mutex_unlock(&t7xx_dev->md_pm_entity_mtx);
46e8f49ed7b306 Haijun Liu 2022-05-06  132  	return 0;
46e8f49ed7b306 Haijun Liu 2022-05-06  133  }
46e8f49ed7b306 Haijun Liu 2022-05-06  134  

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