From: Américo Wang <xiyou.wangcong@gmail.com>
Date: Fri, 13 Mar 2009 07:56:58 +0000 (+0800)
Subject: x86: ptrace, bts: fix an unreachable statement
X-Git-Tag: firefly_0821_release~14004^2~28^3~2^8
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=5a8ac9d28dae5330c70562c7d7785f5104059c17;p=firefly-linux-kernel-4.4.55.git

x86: ptrace, bts: fix an unreachable statement

Commit c2724775ce57c98b8af9694857b941dc61056516 put a statement
after return, which makes that statement unreachable.

Move that statement before return.

Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Markus Metzger <markus.t.metzger@intel.com>
LKML-Reference: <20090313075622.GB8933@hack>
Cc: <stable@kernel.org> # .29 only
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index 3d9672e59c16..19378715f415 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -685,9 +685,8 @@ static int ptrace_bts_config(struct task_struct *child,
 		if (!cfg.signal)
 			return -EINVAL;
 
-		return -EOPNOTSUPP;
-
 		child->thread.bts_ovfl_signal = cfg.signal;
+		return -EOPNOTSUPP;
 	}
 
 	if ((cfg.flags & PTRACE_BTS_O_ALLOC) &&