linux-kernel - drivers/bus/ti-sysc.c:2494:13: warning: variable 'error' set but not used

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Date:   Tue, 28 Sep 2021 11:46:24 +0800
From:   kernel test robot <lkp@...el.com>
To:     Tony Lindgren <tony@...mide.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        0day robot <lkp@...el.com>
Subject: drivers/bus/ti-sysc.c:2494:13: warning: variable 'error' set but not
 used

tree:   https://github.com/0day-ci/linux/commits/Tony-Lindgren/Context-loss-handling-for-ti-sysc/20210922-163700
head:   30ec44eb5c4492c98a87f271e994371489b97617
commit: 61c316a03bfdc3d62583195dbd0f419b253a44cd bus: ti-sysc: Add quirk handling for reinit on context lost
date:   6 days ago
config: arm-defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0
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/61c316a03bfdc3d62583195dbd0f419b253a44cd
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Tony-Lindgren/Context-loss-handling-for-ti-sysc/20210922-163700
        git checkout 61c316a03bfdc3d62583195dbd0f419b253a44cd
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=arm 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

   drivers/bus/ti-sysc.c: In function 'sysc_reinit_modules':
>> drivers/bus/ti-sysc.c:2494:13: warning: variable 'error' set but not used [-Wunused-but-set-variable]
    2494 |         int error = 0;
         |             ^~~~~


vim +/error +2494 drivers/bus/ti-sysc.c

  2487	
  2488	/* Caller needs to take list_lock if ever used outside of cpu_pm */
  2489	static void sysc_reinit_modules(struct sysc_soc_info *soc)
  2490	{
  2491		struct sysc_module *module;
  2492		struct list_head *pos;
  2493		struct sysc *ddata;
> 2494		int error = 0;
  2495	
  2496		list_for_each(pos, &sysc_soc->restored_modules) {
  2497			module = list_entry(pos, struct sysc_module, node);
  2498			ddata = module->ddata;
  2499			error = sysc_reinit_module(ddata, ddata->enabled);
  2500		}
  2501	}
  2502	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

Download attachment ".config.gz" of type "application/gzip" (54361 bytes)