drivers/base/power/runtime-test.c:368 pm_runtime_pending_teardown_test() warn: pm_runtime_get_sync() also returns 1 on success

drivers/base/power/runtime-test.c:368 pm_runtime_pending_teardown_test() warn: pm_runtime_get_sync() also returns 1 on success

[kernel test robot]

Unfiltered warning: this smatch report is sent as-is and has not been
reviewed for false positives, so please treat it with due skepticism.

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
TO: Brian Norris <briannorris@chromium.org>
CC: 0day robot <lkp@intel.com>

tree:   https://github.com/intel-lab-lkp/linux/commits/Brian-Norris/PM-runtime-Cancel-pending-only-during-non-transient-suspend-failure/20260929-114711
head:   dfc97fdf56151a722171601bd1b6278d4fb54f0b
commit: dfc97fdf56151a722171601bd1b6278d4fb54f0b PM: runtime: Add test for pending-autosuspend + teardown
date:   8 days ago
:::::: branch date: 8 days ago
:::::: commit date: 8 days ago
config: i386-randconfig-2200-20261006 (https://download.01.org/0day-ci/archive/20261008/202610080756.OSy2UU1U-lkp@intel.com/config)
compiler: gcc-13 (Debian 13.3.0-16) 13.3.0
smatch: v0.5.0-9187-g5189e3fb

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: Dan Carpenter <error27@gmail.com>
| Closes: https://lore.kernel.org/r/202610080756.OSy2UU1U-lkp@intel.com/

New smatch warnings:
drivers/base/power/runtime-test.c:368 pm_runtime_pending_teardown_test() warn: pm_runtime_get_sync() also returns 1 on success

Old smatch warnings:
drivers/base/power/runtime-test.c:23 pm_runtime_depth_test() warn: pm_runtime_get_sync() also returns 1 on success
drivers/base/power/runtime-test.c:75 pm_runtime_idle_test() warn: pm_runtime_get_sync() also returns 1 on success
drivers/base/power/runtime-test.c:179 pm_runtime_error_test() warn: pm_runtime_get_sync() also returns 1 on success
drivers/base/power/runtime-test.c:182 pm_runtime_error_test() warn: pm_runtime_get_sync() also returns 1 on success
drivers/base/power/runtime-test.c:258 pm_runtime_supplier_suspend_test() warn: pm_runtime_get_sync() also returns 1 on success
drivers/base/power/runtime-test.c:264 pm_runtime_supplier_suspend_test() warn: pm_runtime_get_sync() also returns 1 on success

vim +368 drivers/base/power/runtime-test.c

dd53d089b9af929 Brian Norris 2026-09-29  356  
dfc97fdf56151a7 Brian Norris 2026-09-29  357  static void pm_runtime_pending_teardown_test(struct kunit *test)
dfc97fdf56151a7 Brian Norris 2026-09-29  358  {
dfc97fdf56151a7 Brian Norris 2026-09-29  359  	struct device *dev = kunit_device_register(test, DEVICE_NAME);
dfc97fdf56151a7 Brian Norris 2026-09-29  360  
dfc97fdf56151a7 Brian Norris 2026-09-29  361  	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev);
dfc97fdf56151a7 Brian Norris 2026-09-29  362  
dfc97fdf56151a7 Brian Norris 2026-09-29  363  	pm_runtime_enable(dev);
dfc97fdf56151a7 Brian Norris 2026-09-29  364  	pm_runtime_use_autosuspend(dev);
dfc97fdf56151a7 Brian Norris 2026-09-29  365  
dfc97fdf56151a7 Brian Norris 2026-09-29  366  	KUNIT_EXPECT_TRUE(test, pm_runtime_suspended(dev));
dfc97fdf56151a7 Brian Norris 2026-09-29  367  
dfc97fdf56151a7 Brian Norris 2026-09-29 @368  	KUNIT_EXPECT_EQ(test, 0, pm_runtime_get_sync(dev));
dfc97fdf56151a7 Brian Norris 2026-09-29  369  	KUNIT_EXPECT_TRUE(test, pm_runtime_active(dev));
dfc97fdf56151a7 Brian Norris 2026-09-29  370  
dfc97fdf56151a7 Brian Norris 2026-09-29  371  	/* Queue a RPM_REQ_AUTOSUSPEND (immediately, as autosuspend_delay is 0) */
dfc97fdf56151a7 Brian Norris 2026-09-29  372  	KUNIT_EXPECT_EQ(test, 0, pm_runtime_put_autosuspend(dev));
dfc97fdf56151a7 Brian Norris 2026-09-29  373  
dfc97fdf56151a7 Brian Norris 2026-09-29  374  	/*
dfc97fdf56151a7 Brian Norris 2026-09-29  375  	 * This is expected to quiesce a pending auto-suspend. See especially
dfc97fdf56151a7 Brian Norris 2026-09-29  376  	 * devm_pm_runtime_enable() -> pm_runtime_disable_action().
dfc97fdf56151a7 Brian Norris 2026-09-29  377  	 */
dfc97fdf56151a7 Brian Norris 2026-09-29  378  	pm_runtime_dont_use_autosuspend(dev);
dfc97fdf56151a7 Brian Norris 2026-09-29  379  
dfc97fdf56151a7 Brian Norris 2026-09-29  380  	KUNIT_EXPECT_TRUE(test, pm_runtime_suspended(dev));
dfc97fdf56151a7 Brian Norris 2026-09-29  381  }
dfc97fdf56151a7 Brian Norris 2026-09-29  382  

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