1 files changed, 1 insertions, 0 deletions

diff --git a/include/asm-arm/atomic.h b/include/asm-arm/atomic.h
index 75b802719723..5f827509e923 100644
--- a/include/asm-arm/atomic.h
+++ b/include/asm-arm/atomic.h
@@ -87,6 +87,7 @@ static inline int atomic_cmpxchg(atomic_t *ptr, int old, int new)
         do {
                 __asm__ __volatile__("@ atomic_cmpxchg\n"
                 "ldrex  %1, [%2]\n"
+                "mov    %0, #0\n"
                 "teq    %1, %3\n"
                 "strexeq %0, %4, [%2]\n"
                     : "=&r" (res), "=&r" (oldval)