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Power management fix for 6.17-rc4

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Add missing locking annotations to two recently introduced
 list_for_each_entry_rcu() loops in the core device suspend/resume
 code (Johannes Berg)
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Merge tag 'pm-6.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fix from Rafael Wysocki:
 "Add missing locking annotations to two recently introduced
  list_for_each_entry_rcu() loops in the core device suspend/resume
  code (Johannes Berg)"

* tag 'pm-6.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM: sleep: annotate RCU list iterations
This commit is contained in:
Linus Torvalds 2025-08-28 16:34:32 -07:00
commit fa58e4f6e1
1 changed files with 2 additions and 2 deletions
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4
drivers/base/power/main.c
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@ -675,7 +675,7 @@ static void dpm_async_resume_subordinate(struct device *dev, async_func_t func)
idx = device_links_read_lock(); idx = device_links_read_lock();
/* Start processing the device's "async" consumers. */ /* Start processing the device's "async" consumers. */
list_for_each_entry_rcu(link, &dev->links.consumers, s_node) list_for_each_entry_rcu_locked(link, &dev->links.consumers, s_node)
if (READ_ONCE(link->status) != DL_STATE_DORMANT) if (READ_ONCE(link->status) != DL_STATE_DORMANT)
dpm_async_with_cleanup(link->consumer, func); dpm_async_with_cleanup(link->consumer, func);
@ -1330,7 +1330,7 @@ static void dpm_async_suspend_superior(struct device *dev, async_func_t func)
idx = device_links_read_lock(); idx = device_links_read_lock();
/* Start processing the device's "async" suppliers. */ /* Start processing the device's "async" suppliers. */
list_for_each_entry_rcu(link, &dev->links.suppliers, c_node) list_for_each_entry_rcu_locked(link, &dev->links.suppliers, c_node)
if (READ_ONCE(link->status) != DL_STATE_DORMANT) if (READ_ONCE(link->status) != DL_STATE_DORMANT)
dpm_async_with_cleanup(link->supplier, func); dpm_async_with_cleanup(link->supplier, func);