tuxedo: fix KThreadYield from ISR when the current thread is the idle thread

fincs · fincs · commit 3f270d024e5b · 2026-05-02T19:54:35.000+02:00
diff --git a/tuxedo/thread.c b/tuxedo/thread.c
@@ -189,7 +189,7 @@ void KThreadYield(void)
 	PPCIrqState st = PPCIrqLockByMsr();
 
 	KThread* t = KThreadFindRunnable(self->next);
-	if (t->prio > self->prio) {
+	if (!t || t->prio > self->prio) {
 		t = KThreadFindRunnable(s_firstThread);
 	}
 

Original file line number	Diff line number	Diff line change
`@@ -189,7 +189,7 @@ void KThreadYield(void)`
`189`	`189`	`PPCIrqState st = PPCIrqLockByMsr();`
`190`	`190`
`191`	`191`	`KThread* t = KThreadFindRunnable(self->next);`
`192`		`- if (t->prio > self->prio) {`
	`192`	`+ if (!t \|\| t->prio > self->prio) {`
`193`	`193`	`t = KThreadFindRunnable(s_firstThread);`
`194`	`194`	`}`
`195`	`195`