diff --git a/[refs] b/[refs]
index 30cde88dbfc1..9260a623077f 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: bce61dd49d6ba7799be2de17c772e4c701558f14
+refs/heads/master: 91f4ab056d85d23fa6955927fdeb1558673e8cd1
diff --git a/trunk/arch/m32r/kernel/sys_m32r.c b/trunk/arch/m32r/kernel/sys_m32r.c
index e0500e12c5fb..fe55b28d3725 100644
--- a/trunk/arch/m32r/kernel/sys_m32r.c
+++ b/trunk/arch/m32r/kernel/sys_m32r.c
@@ -41,7 +41,8 @@ asmlinkage int sys_tas(int *addr)
 		return -EFAULT;
 	local_irq_save(flags);
 	oldval = *addr;
-	*addr = 1;
+	if (!oldval)
+		*addr = 1;
 	local_irq_restore(flags);
 	return oldval;
 }
@@ -59,7 +60,8 @@ asmlinkage int sys_tas(int *addr)
 
 	_raw_spin_lock(&tas_lock);
 	oldval = *addr;
-	*addr = 1;
+	if (!oldval)
+		*addr = 1;
 	_raw_spin_unlock(&tas_lock);
 
 	return oldval;