Re: [PATCH] platform/chrome: fix reference leak on failed device registration

[kernel test robot]

Hi Guangshuo,

kernel test robot noticed the following build errors:

[auto build test ERROR on chrome-platform/for-next]
[also build test ERROR on chrome-platform/for-firmware-next linus/master v7.0 next-20260416]
[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/Guangshuo-Li/platform-chrome-fix-reference-leak-on-failed-device-registration/20260416-135638
base:   https://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux.git for-next
patch link:    https://lore.kernel.org/r/20260415175038.3633384-1-lgs201920130244%40gmail.com
patch subject: [PATCH] platform/chrome: fix reference leak on failed device registration
config: x86_64-randconfig-013-20260417 (https://download.01.org/0day-ci/archive/20260417/202604171609.wl8JLCit-lkp@xxxxxxxxx/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260417/202604171609.wl8JLCit-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/202604171609.wl8JLCit-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

>> drivers/platform/chrome/chromeos_pstore.c:131:3: error: use of undeclared identifier 'ret'
     131 |                 ret = platform_device_register(&chromeos_ramoops);
         |                 ^
   drivers/platform/chrome/chromeos_pstore.c:132:7: error: use of undeclared identifier 'ret'
     132 |                 if (ret)
         |                     ^
   drivers/platform/chrome/chromeos_pstore.c:135:10: error: use of undeclared identifier 'ret'
     135 |                 return ret;
         |                        ^
   3 errors generated.


vim +/ret +131 drivers/platform/chrome/chromeos_pstore.c

   119	
   120	static int __init chromeos_pstore_init(void)
   121	{
   122		bool acpi_dev_found;
   123	
   124		if (ecc_size > 0)
   125			chromeos_ramoops_data.ecc_info.ecc_size = ecc_size;
   126	
   127		/* First check ACPI for non-hardcoded values from firmware. */
   128		acpi_dev_found = chromeos_check_acpi();
   129	
   130		if (acpi_dev_found || dmi_check_system(chromeos_pstore_dmi_table)) {
 > 131			ret = platform_device_register(&chromeos_ramoops);
   132			if (ret)
   133				platform_device_put(&chromeos_ramoops);
   134	
   135			return ret;
   136		}
   137	
   138		return -ENODEV;
   139	}
   140	

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