From: Andrew Morton <akpm@linux-foundation.org>

Try to make it possible to carry the utrace patchset.

Cc: Roland Dreier <rolandd@cisco.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/x86_64/kernel/ptrace.c |    8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff -puN arch/x86_64/kernel/ptrace.c~revert-x86_64-mm-putreg-check arch/x86_64/kernel/ptrace.c
--- a/arch/x86_64/kernel/ptrace.c~revert-x86_64-mm-putreg-check
+++ a/arch/x86_64/kernel/ptrace.c
@@ -536,12 +536,8 @@ long arch_ptrace(struct task_struct *chi
 		}
 		ret = 0;
 		for (ui = 0; ui < sizeof(struct user_regs_struct); ui += sizeof(long)) {
-			ret = __get_user(tmp, (unsigned long __user *) data);
-			if (ret)
-				break;
-			ret = putreg(child, ui, tmp);
-			if (ret)
-				break;
+			ret |= __get_user(tmp, (unsigned long __user *) data);
+			putreg(child, ui, tmp);
 			data += sizeof(long);
 		}
 		break;
_