fix: ticket-spinlock trylock

TaiJuWu · Oct 5, 2023 · e75db46 · e75db46
1 parent 4f362c5
commit e75db46
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/sched/semaphore/spinlock.c b/sched/semaphore/spinlock.c
@@ -160,8 +160,12 @@ spinlock_t spin_trylock(FAR volatile spinlock_t *lock)
       return SP_LOCKED;
     }
 
-  ticket_spinlock_t old = atomic_load((ticket_spinlock_t *)lock);
-  ticket_spinlock_t new = old;
+  ticket_spinlock_t old;
+  ticket_spinlock_t new;
+
+  old = atomic_load((ticket_spinlock_t *)lock);
+  old.owner = old.next;
+  new = old;
   new.next += 1;
 
   bool success = atomic_compare_exchange_strong((ticket_spinlock_t *)lock,