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-rw-r--r--arch/x86/include/asm/spinlock.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h
index d17c91981da2..4d3dcc51cacd 100644
--- a/arch/x86/include/asm/spinlock.h
+++ b/arch/x86/include/asm/spinlock.h
@@ -329,8 +329,7 @@ static inline int __raw_read_trylock(raw_rwlock_t *lock)
329{ 329{
330 atomic_t *count = (atomic_t *)lock; 330 atomic_t *count = (atomic_t *)lock;
331 331
332 atomic_dec(count); 332 if (atomic_dec_return(count) >= 0)
333 if (atomic_read(count) >= 0)
334 return 1; 333 return 1;
335 atomic_inc(count); 334 atomic_inc(count);
336 return 0; 335 return 0;