diff --git a/arch/s390/lib/uaccess.c b/arch/s390/lib/uaccess.c
index 0b012ce0921c..25be1424d393 100644
--- a/arch/s390/lib/uaccess.c
+++ b/arch/s390/lib/uaccess.c
@@ -227,7 +227,7 @@ static inline unsigned long clear_user_mvcos(void __user *to, unsigned long size
 		"4: slgr  %0,%0\n"
 		"5:\n"
 		EX_TABLE(0b,2b) EX_TABLE(6b,2b) EX_TABLE(3b,5b) EX_TABLE(7b,5b)
-		: "+a" (size), "+a" (to), "+a" (tmp1), "=a" (tmp2)
+		: "+&a" (size), "+&a" (to), "+a" (tmp1), "=&a" (tmp2)
 		: "a" (empty_zero_page), [spec] "K" (0x81UL)
 		: "cc", "memory", "0");
 	return size;