x86: clobber rbx in putuser_64.S.

Instead of clobbering r8, clobber rbx, which is the i386 way.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/asm-x86/uaccess_64.h b/include/asm-x86/uaccess_64.h
index a2d49078e19c..21fda9ebee13 100644
--- a/include/asm-x86/uaccess_64.h
+++ b/include/asm-x86/uaccess_64.h
@@ -131,7 +131,7 @@ extern void __put_user_bad(void);
         asm volatile("call __put_user_" #size                           \
                      :"=a" (ret)                                        \
                      :"c" (ptr),"d" (x)                                 \
-                     :"r8")
+                     :"ebx")
 
 #define put_user(x, ptr)                                                \
         __put_user_check((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))