[arm-integrator:b4/genexis-xg6846b-bcmbca-xrdp-reset 5/6] drivers/bus/bcmbca_pmc3_pmb.c:100:2-8: preceding lock on line 86

[arm-integrator:b4/genexis-xg6846b-bcmbca-xrdp-reset 5/6] drivers/bus/bcmbca_pmc3_pmb.c:100:2-8: preceding lock on line 86

[kernel test robot]

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
TO: Linus Walleij <linusw@kernel.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator.git b4/genexis-xg6846b-bcmbca-xrdp-reset
head:   f576cbf2d1f356edfa8a9a7774037a6f28209ac2
commit: f7d8e26a2c3719e61f34785d5049f1f68f4413cb [5/6] bus: Add a shared BCMBCA PMC3 PMB transport
:::::: branch date: 12 hours ago
:::::: commit date: 12 hours ago
config: parisc-randconfig-r2111-20261014 (https://download.01.org/0day-ci/archive/20261014/202610142340.SKtimKtj-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 8.5.0

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@intel.com>
| Reported-by: Julia Lawall <julia.lawall@inria.fr>
| Closes: https://lore.kernel.org/r/202610142340.SKtimKtj-lkp@intel.com/

cocci warnings: (new ones prefixed by >>)
>> drivers/bus/bcmbca_pmc3_pmb.c:100:2-8: preceding lock on line 86

vim +100 drivers/bus/bcmbca_pmc3_pmb.c

f7d8e26a2c3719e Linus Walleij 2026-10-13   80  
f7d8e26a2c3719e Linus Walleij 2026-10-13   81  int bcmbca_pmb_lock(struct bcmbca_pmb *pmb)
f7d8e26a2c3719e Linus Walleij 2026-10-13   82  {
f7d8e26a2c3719e Linus Walleij 2026-10-13   83  	u32 value;
f7d8e26a2c3719e Linus Walleij 2026-10-13   84  	int ret;
f7d8e26a2c3719e Linus Walleij 2026-10-13   85  
f7d8e26a2c3719e Linus Walleij 2026-10-13  @86  	mutex_lock(&pmb->lock);
f7d8e26a2c3719e Linus Walleij 2026-10-13   87  	if (pmb->stopping) {
f7d8e26a2c3719e Linus Walleij 2026-10-13   88  		ret = -ENODEV;
f7d8e26a2c3719e Linus Walleij 2026-10-13   89  		goto unlock;
f7d8e26a2c3719e Linus Walleij 2026-10-13   90  	}
f7d8e26a2c3719e Linus Walleij 2026-10-13   91  	if (pmb->recovering) {
f7d8e26a2c3719e Linus Walleij 2026-10-13   92  		ret = -EBUSY;
f7d8e26a2c3719e Linus Walleij 2026-10-13   93  		goto unlock;
f7d8e26a2c3719e Linus Walleij 2026-10-13   94  	}
f7d8e26a2c3719e Linus Walleij 2026-10-13   95  
f7d8e26a2c3719e Linus Walleij 2026-10-13   96  	/* Reading bit 0 acquires the hardware lock; writing 1 releases it. */
f7d8e26a2c3719e Linus Walleij 2026-10-13   97  	ret = readl_poll_timeout(pmb->base + PMB_MUTEX, value,
f7d8e26a2c3719e Linus Walleij 2026-10-13   98  				 value & PMB_LOCKED, 1, 1000);
f7d8e26a2c3719e Linus Walleij 2026-10-13   99  	if (!ret)
f7d8e26a2c3719e Linus Walleij 2026-10-13 @100  		return 0;
f7d8e26a2c3719e Linus Walleij 2026-10-13  101  unlock:
f7d8e26a2c3719e Linus Walleij 2026-10-13  102  	mutex_unlock(&pmb->lock);
f7d8e26a2c3719e Linus Walleij 2026-10-13  103  	return ret;
f7d8e26a2c3719e Linus Walleij 2026-10-13  104  }
f7d8e26a2c3719e Linus Walleij 2026-10-13  105  EXPORT_SYMBOL_GPL(bcmbca_pmb_lock);
f7d8e26a2c3719e Linus Walleij 2026-10-13  106  

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