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-rw-r--r--kernel/locking/mutex.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
index 2048359..f44f658 100644
--- a/kernel/locking/mutex.c
+++ b/kernel/locking/mutex.c
@@ -139,8 +139,9 @@ static inline bool __mutex_trylock(struct mutex *lock)
static __always_inline bool __mutex_trylock_fast(struct mutex *lock)
{
unsigned long curr = (unsigned long)current;
+ unsigned long zero = 0UL;
- if (!atomic_long_cmpxchg_acquire(&lock->owner, 0UL, curr))
+ if (atomic_long_try_cmpxchg_acquire(&lock->owner, &zero, curr))
return true;
return false;
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