From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 24 Sep 2010 05:25:34 +0000 (+0100)
Subject: m32r: fix breakage from "m32r: use generic ptrace_resume code"
X-Git-Tag: v2.6.36-rc6~40
X-Git-Url: http://bbs.cooldavid.org/git/?a=commitdiff_plain;ds=sidebyside;h=acdc0d5ef9dd74534fe8df77a2056fa1d911abe5;p=net-next-2.6.git

m32r: fix breakage from "m32r: use generic ptrace_resume code"

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c
index e555091eb97..0021ade4cba 100644
--- a/arch/m32r/kernel/ptrace.c
+++ b/arch/m32r/kernel/ptrace.c
@@ -592,16 +592,17 @@ void user_enable_single_step(struct task_struct *child)
 
 	if (access_process_vm(child, pc&~3, &insn, sizeof(insn), 0)
 	    != sizeof(insn))
-		break;
+		return -EIO;
 
 	compute_next_pc(insn, pc, &next_pc, child);
 	if (next_pc & 0x80000000)
-		break;
+		return -EIO;
 
 	if (embed_debug_trap(child, next_pc))
-		break;
+		return -EIO;
 
 	invalidate_cache();
+	return 0;
 }
 
 void user_disable_single_step(struct task_struct *child)