From e2d53d7c4a1095f372c100be5825a823df15ca98 Mon Sep 17 00:00:00 2001
From: Benno Rice <benno@FreeBSD.org>
Date: Sun, 24 Jun 2001 06:36:28 +0000
Subject: [PATCH] Fix asm constraints for atomic_cmpset_32.  This fix may also
 be needed elsewhere.

---
 sys/powerpc/include/atomic.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/powerpc/include/atomic.h b/sys/powerpc/include/atomic.h
index 619ca7eeef06..1b7088b5ebef 100644
--- a/sys/powerpc/include/atomic.h
+++ b/sys/powerpc/include/atomic.h
@@ -347,7 +347,7 @@ atomic_cmpset_32(volatile u_int32_t* p, u_int32_t cmpval, u_int32_t newval)
 		"bne- 1b\n\t"			/* spin if failed */
 		"eieio\n"			/* memory barrier */
 		"2:\t\n"
-		: "=r" (ret)
+		: "=&r" (ret)
 		: "r" (cmpval), "r" (newval), "r" (p)
 		: "memory");