sched: Limit deadline scheduler parameter

TaiJuWu · nashif · commit 555c07ef08e9 · 2024-06-15T05:13:41.000-04:00
The deadline of deadline scheduler should lager than zero
because if deadline is negative, it menas the task should
be finished in past.

Signed-off-by: TaiJu Wu &lt;tjwu1217@gmail.com&gt;
diff --git a/kernel/sched.c b/kernel/sched.c
@@ -1058,6 +1058,9 @@ static inline void z_vrfy_k_thread_priority_set(k_tid_t thread, int prio)
 #ifdef CONFIG_SCHED_DEADLINE
 void z_impl_k_thread_deadline_set(k_tid_t tid, int deadline)
 {
+
+	deadline = CLAMP(deadline, 0, INT_MAX);
+
 	struct k_thread *thread = tid;
 	int32_t newdl = k_cycle_get_32() + deadline;
 

Original file line number	Diff line number	Diff line change
`@@ -1058,6 +1058,9 @@ static inline void z_vrfy_k_thread_priority_set(k_tid_t thread, int prio)`
`1058`	`1058`	`#ifdef CONFIG_SCHED_DEADLINE`
`1059`	`1059`	`void z_impl_k_thread_deadline_set(k_tid_t tid, int deadline)`
`1060`	`1060`	`{`
	`1061`	`+`
	`1062`	`+ deadline = CLAMP(deadline, 0, INT_MAX);`
	`1063`	`+`
`1061`	`1064`	`struct k_thread *thread = tid;`
`1062`	`1065`	`int32_t newdl = k_cycle_get_32() + deadline;`
`1063`	`1066`