diff --git a/include/asm-generic/mutex-dec.h b/include/asm-generic/mutex-dec.h
index 74b18cda169f..40c6d1f86598 100644
--- a/include/asm-generic/mutex-dec.h
+++ b/include/asm-generic/mutex-dec.h
@@ -97,7 +97,7 @@ __mutex_fastpath_trylock(atomic_t *count, int (*fail_fn)(atomic_t *))
 	 * the mutex state would be.
 	 */
 #ifdef __HAVE_ARCH_CMPXCHG
-	if (likely(atomic_cmpxchg(count, 1, 0)) == 1) {
+	if (likely(atomic_cmpxchg(count, 1, 0) == 1)) {
 		smp_mb();
 		return 1;
 	}
diff --git a/include/asm-i386/mutex.h b/include/asm-i386/mutex.h
index c657d4b09f0a..9b2199e829f3 100644
--- a/include/asm-i386/mutex.h
+++ b/include/asm-i386/mutex.h
@@ -125,7 +125,7 @@ __mutex_fastpath_trylock(atomic_t *count, int (*fail_fn)(atomic_t *))
 	 * the mutex state would be.
 	 */
 #ifdef __HAVE_ARCH_CMPXCHG
-	if (likely(atomic_cmpxchg(count, 1, 0)) == 1)
+	if (likely(atomic_cmpxchg(count, 1, 0) == 1))
 		return 1;
 	return 0;
 #else
diff --git a/include/asm-x86_64/mutex.h b/include/asm-x86_64/mutex.h
index 818abfd262d1..11fbee2bd6c0 100644
--- a/include/asm-x86_64/mutex.h
+++ b/include/asm-x86_64/mutex.h
@@ -104,7 +104,7 @@ do {									\
 static inline int
 __mutex_fastpath_trylock(atomic_t *count, int (*fail_fn)(atomic_t *))
 {
-	if (likely(atomic_cmpxchg(count, 1, 0)) == 1)
+	if (likely(atomic_cmpxchg(count, 1, 0) == 1))
 		return 1;
 	else
 		return 0;