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kernel: only resume suspended threads

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Do not try to resume a thread that was not suspended.

Fixes #28694

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
This commit is contained in:
Anas Nashif 2020-10-16 19:53:56 -04:00
commit bf69afcdae
2 changed files with 11 additions and 0 deletions
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5
kernel/include/ksched.h
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@ -105,6 +105,11 @@ static inline bool z_is_idle_thread_object(struct k_thread *thread)
#endif /* CONFIG_MULTITHREADING */
}
static inline bool z_is_thread_suspended(struct k_thread *thread)
{
return (thread->base.thread_state & _THREAD_SUSPENDED) != 0U;
}
static inline bool z_is_thread_pending(struct k_thread *thread)
{
return (thread->base.thread_state & _THREAD_PENDING) != 0U;

6
kernel/sched.c
View file

@ -487,6 +487,12 @@ void z_impl_k_thread_resume(struct k_thread *thread)
{
k_spinlock_key_t key = k_spin_lock(&sched_spinlock);
/* Do not try to resume a thread that was not suspended */
if (!z_is_thread_suspended(thread)) {
k_spin_unlock(&sched_spinlock, key);
return;
}
z_mark_thread_as_not_suspended(thread);
ready_thread(thread);