kernel: Do not spin in spinlock_try_acquire()

The spinlock_try_acquire() function should *not* block as it is meant to
simply attempt to acquire the lock and return its status.

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 1 insertions, 2 deletions

diff --git a/sys/kern/kern_synch.c b/sys/kern/kern_synch.c
index 497aff7..2ac39c8 100644
--- a/sys/kern/kern_synch.c
+++ b/sys/kern/kern_synch.c
@@ -110,8 +110,7 @@ spinlock_try_acquire(struct spinlock *lock)
         return 1;
     }
 
-    while (__atomic_test_and_set(&lock->lock, __ATOMIC_ACQUIRE));
-    return 0;
+    return __atomic_test_and_set(&lock->lock, __ATOMIC_ACQUIRE);
 }
 
 void