[linux-next:master 4344/13038] drivers/hid/hid-sony.c:1726:41: warning: Uninitialized variables: entry.lock, entry.list_node, entry.hdev, entry.touchpad, entry.sensor_dev, entry.quirks, entry.state_worker, entry.send_output_report, entry.battery, entry.battery_desc, entry.device_id, en...

[linux-next:master 4344/13038] drivers/hid/hid-sony.c:1726:41: warning: Uninitialized variables: entry.lock, entry.list_node, entry.hdev, entry.touchpad, entry.sensor_dev, entry.quirks, entry.state_worker, entry.send_output_report, entry.battery, entry.battery_desc, entry.device_id, en...

[kernel test robot]

:::::: 
:::::: Manual check reason: "low confidence static check warning: drivers/hid/hid-sony.c:1726:41: warning: Uninitialized variables: entry.lock, entry.list_node, entry.hdev, entry.touchpad, entry.sensor_dev, entry.quirks, entry.state_worker, entry.send_output_report, entry.battery, entry.battery_desc, entry.device_id, entry.output_report_dmabuf, entry.state_worker_initialized, entry.defer_initialization, entry.battery_capacity, entry.battery_status, entry.led_count, entry.ghl_urb, entry.ghl_poke_timer [uninitvar]"
:::::: 

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: Linux Memory Management List <linux-mm@kvack.org>
TO: Roderick Colenbrander <roderick@gaikai.com>
CC: Jiri Kosina <jkosina@suse.cz>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   9d9019bcea1aac7eed64a1a4966282b6b7b141c8
commit: 4f1f391869eecb11d57e9e07ddec143ff3dc08ee [4344/13038] HID: sony: remove DualShock4 support.
:::::: branch date: 21 hours ago
:::::: commit date: 4 weeks ago
compiler: or1k-linux-gcc (GCC) 12.1.0
reproduce (cppcheck warning):
        # apt-get install cppcheck
        git checkout 4f1f391869eecb11d57e9e07ddec143ff3dc08ee
        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>
| Link: https://lore.kernel.org/r/202302160922.nitD5BDe-lkp@intel.com/


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

>> drivers/hid/hid-sony.c:1726:41: warning: Uninitialized variables: entry.lock, entry.list_node, entry.hdev, entry.touchpad, entry.sensor_dev, entry.quirks, entry.state_worker, entry.send_output_report, entry.battery, entry.battery_desc, entry.device_id, entry.output_report_dmabuf, entry.state_worker_initialized, entry.defer_initialization, entry.battery_capacity, entry.battery_status, entry.led_count, entry.ghl_urb, entry.ghl_poke_timer [uninitvar]
      if (sony_compare_connection_type(sc, entry)) {
                                           ^
   drivers/hid/hid-sony.c:1726:41: warning: Uninitialized variables: entry.lock, entry.list_node, entry.hdev, entry.touchpad, entry.sensor_dev, entry.quirks, entry.state_worker, entry.send_output_report, entry.battery, entry.battery_desc, entry.device_id, entry.output_report_dmabuf, entry.left, entry.right, entry.state_worker_initialized, entry.defer_initialization, entry.battery_capacity, entry.battery_status, entry.led_count, entry.ghl_urb, entry.ghl_poke_timer [uninitvar]
      if (sony_compare_connection_type(sc, entry)) {
                                           ^

vim +1726 drivers/hid/hid-sony.c

0f3982308b5fc7 Frank Praznik 2016-09-22  1713  
d2d782fccee4f6 Frank Praznik 2014-02-20  1714  static int sony_check_add_dev_list(struct sony_sc *sc)
d2d782fccee4f6 Frank Praznik 2014-02-20  1715  {
d2d782fccee4f6 Frank Praznik 2014-02-20  1716  	struct sony_sc *entry;
d2d782fccee4f6 Frank Praznik 2014-02-20  1717  	unsigned long flags;
d2d782fccee4f6 Frank Praznik 2014-02-20  1718  	int ret;
d2d782fccee4f6 Frank Praznik 2014-02-20  1719  
d2d782fccee4f6 Frank Praznik 2014-02-20  1720  	spin_lock_irqsave(&sony_dev_list_lock, flags);
c4e1ddf2680b35 Frank Praznik 2014-01-17  1721  
d2d782fccee4f6 Frank Praznik 2014-02-20  1722  	list_for_each_entry(entry, &sony_device_list, list_node) {
d2d782fccee4f6 Frank Praznik 2014-02-20  1723  		ret = memcmp(sc->mac_address, entry->mac_address,
d2d782fccee4f6 Frank Praznik 2014-02-20  1724  				sizeof(sc->mac_address));
d2d782fccee4f6 Frank Praznik 2014-02-20  1725  		if (!ret) {
0f3982308b5fc7 Frank Praznik 2016-09-22 @1726  			if (sony_compare_connection_type(sc, entry)) {
0f3982308b5fc7 Frank Praznik 2016-09-22  1727  				ret = 1;
0f3982308b5fc7 Frank Praznik 2016-09-22  1728  			} else {
d2d782fccee4f6 Frank Praznik 2014-02-20  1729  				ret = -EEXIST;
0f3982308b5fc7 Frank Praznik 2016-09-22  1730  				hid_info(sc->hdev,
0f3982308b5fc7 Frank Praznik 2016-09-22  1731  				"controller with MAC address %pMR already connected\n",
d2d782fccee4f6 Frank Praznik 2014-02-20  1732  				sc->mac_address);
0f3982308b5fc7 Frank Praznik 2016-09-22  1733  			}
d2d782fccee4f6 Frank Praznik 2014-02-20  1734  			goto unlock;
d2d782fccee4f6 Frank Praznik 2014-02-20  1735  		}
d2d782fccee4f6 Frank Praznik 2014-02-20  1736  	}
d2d782fccee4f6 Frank Praznik 2014-02-20  1737  
d2d782fccee4f6 Frank Praznik 2014-02-20  1738  	ret = 0;
d2d782fccee4f6 Frank Praznik 2014-02-20  1739  	list_add(&(sc->list_node), &sony_device_list);
d2d782fccee4f6 Frank Praznik 2014-02-20  1740  
d2d782fccee4f6 Frank Praznik 2014-02-20  1741  unlock:
d2d782fccee4f6 Frank Praznik 2014-02-20  1742  	spin_unlock_irqrestore(&sony_dev_list_lock, flags);
d2d782fccee4f6 Frank Praznik 2014-02-20  1743  	return ret;
c4e1ddf2680b35 Frank Praznik 2014-01-17  1744  }
c4e1ddf2680b35 Frank Praznik 2014-01-17  1745  

:::::: The code at line 1726 was first introduced by commit
:::::: 0f3982308b5fc7373c8d4e6dcfc8a02ee5a3408d HID: sony: Relax duplicate checking for USB-only devices

:::::: TO: Frank Praznik <frank.praznik@gmail.com>
:::::: CC: Jiri Kosina <jkosina@suse.cz>

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https://github.com/intel/lkp-tests